Datasets:

slmconsortium
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OpenThink

category stringclasses 6 values	subtopic stringclasses 44 values	solver stringclasses 1 value	question stringlengths 41 725	trace stringlengths 17 1.26k	answer stringlengths 1 608	agree bool 1 class	both_finals listlengths 2 2	out_tok int64 15 889
code-trace	value of a variable after a loop	mimo-v2.6-flash	In a bakery, Omar sets total = 3. Each time a croissant is boxed he adds 2 to total, but he only has 4 croissants. After boxing all croissants, he subtracts 1 if total exceeds 9. What is total?	Start with total = 3. Boxing 4 croissants adds 2 each: 3 + 4×2 = 11. Since 11 exceeds 9, subtract 1: 11 − 1 = 10. Final answer: 10	10	true	[ "10", "10" ]	107
deduction	before/after ordering	mimo-v2.6-flash	At a market, Diego buys bread at 8:15, sells a hat at 8:40, buys fruit after selling the hat, and sells a vase before buying the bread. Which transaction happened third?	The timeline of transactions: 1. Sells a vase (must be before 8:15) 2. Buys bread at 8:15 3. Sells a hat at 8:40 4. Buys fruit (must be after 8:40) The third transaction is selling a hat at 8:40. Final answer: Selling a hat	selling a hat	true	[ "selling hat", "selling a hat" ]	153
everyday-logic	timing a sequence of chores	mimo-v2.6-flash	Mara starts laundry at 3:10, which needs 50 minutes, and while it runs she mops for 20 minutes, then waters plants for 15. If she does nothing else, at what time does she finish all three tasks?	Laundry runs 3:10 to 4:00. Mopping takes 4:00 to 4:20. Watering takes 4:20 to 4:35. Final answer: 4:35	4:35	true	[ "4:35", "4:00" ]	112
code-trace	value of a variable after a loop	mimo-v2.6-flash	In a bakery, Rina sets flour = 40. While flour >= 10, she subtracts 12 and adds 3 to sugar. When the loop ends, what is the value of sugar?	Rina starts with flour = 40 and sugar = 0. The loop runs while flour >= 10: - flour = 40 → subtract 12 → flour = 28, sugar = 3 - flour = 28 → subtract 12 → flour = 16, sugar = 6 - flour = 16 → subtract 12 → flour = 4, sugar = 9 - flour = 4 < 10 → loop ends Final answer: 9	9	true	[ "9", "9" ]	237
everyday-logic	timing a sequence of chores	mimo-v2.6-flash	Mara starts laundry (50 minutes) and, while it runs, bakes bread (25 minutes) then weeds the garden (20 minutes). The dryer needs emptying (5 minutes) immediately when laundry ends, and she cannot pause baking once started. What is the earliest total time, in minutes, before everything is finished?	Mara runs laundry from 0 to 50 minutes. She bakes from 0 to 25 (it can't be paused, so it must start at the beginning), then weeds from 25 to 45. Laundry ends at 50, so she empties the dryer from 50 to 55. Nothing else can start earlier, and the dryer task is fixed at the end of the wash. Final answer: 55	55	true	[ "55", "55" ]	250
code-trace	boolean logic in a condition	mimo-v2.6-flash	A sensor checks: if (temp > 20 and not humidity == 80) then alarm = 1 else alarm = 0. Inputs: temp = 25, humidity = 80. Separately, a second check: if (alarm == 1 or temp == 25) then status = 2 else status = 3. What is the final value of status?	temp = 25 > 20 is true, but humidity == 80 is true, so not(humidity == 80) is false. The and fails, so alarm = 0. Then alarm == 1 is false, but temp == 25 is true, so the or succeeds and status = 2. Final answer: 2	2	true	[ "2", "2" ]	123
cause-effect	what happens next	mimo-v2.6-flash	Priya waters her office fern every Monday. This Monday the office is closed for a public holiday. Will she water the fern on Monday, Tuesday, or will it depend on the office schedule?	Since the office is closed on Monday for the public holiday, Priya won't be there to water the fern. She would likely water it on Tuesday when the office reopens, but the exact timing depends on the office schedule and when she's next in the building. Final answer: It depends on the office schedule; she can't water it...	it depends on office schedule; she can't water it monday since office is closed, and would most likely do it tuesday when office reopens	true	[ "it depends on office schedule — since office is closed monday, she'll water it tuesday", "it depends on office schedule; she can't water it monday since office is closed, and would most likely do it tuesday when office reopens" ]	252
everyday-logic	fair sharing of items	mimo-v2.6-flash	Mara has 14 stickers and gives the same number to each of her 3 cousins, keeping the leftovers herself. She gives away as many as possible evenly. How many stickers does Mara keep?	14 divided by 3 gives 4 stickers each to the 3 cousins, using 12 stickers, leaving 2 for Mara. Final answer: 2	2	true	[ "2", "2" ]	49
quantitative	rates and time	mimo-v2.6-flash	A bakery oven bakes 15 rolls in 6 minutes. At that rate, how many minutes will it take to bake 45 rolls?	The oven bakes 15 rolls every 6 minutes. Since 45 rolls is 3 times 15, it will take 3 times as long: 3 × 6 = 18 minutes. Final answer: 18	18	true	[ "18", "18" ]	76
code-trace	dictionary update result	mimo-v2.6-flash	Mara starts with {'a': 1, 'b': 2} and runs d = {'a': 1, 'b': 2}; d.update({'b': 5, 'c': 7}); d['b'] = d['b'] - d['c']. What is the final value of d['b']?	d starts as {'a': 1, 'b': 2}. The update sets b to 5 and adds c as 7. Then d['b'] = 5 - 7 = -2. Final answer: -2	-2	true	[ "-2", "-2" ]	82
quantitative	proportions in a recipe	mimo-v2.6-flash	Priya's punch uses orange juice and sparkling water in a 5 to 3 ratio. She has 22 cups of orange juice and wants to use all of it, keeping the ratio. How many cups of sparkling water does she need?	The ratio of orange juice to sparkling water is 5:3. Since 5 parts equals 22 cups, each part equals 4.4 cups. So 3 parts of sparkling water equals 4.4 × 3 = 13.2 cups. Final answer: 13.2	13.2	true	[ "13.2 cups", "13.2" ]	101
code-trace	string slicing result	mimo-v2.6-flash	A shelf tag reads "MARS-VG472". Using 0-based indexing, Rina takes the substring from index 5 up to but not including index 9, then reverses it. What string does she get?	M A R S - V G 4 7 2 gives indices 0–9. Index 5 up to 9 is "VG47", reversed gives "74GV". Final answer: 74GV	74gv	true	[ "74gv", "74gv" ]	105
reading-inference	what can be concluded from a short passage	mimo-v2.6-flash	Priya's cactus sits on a windowsill. She waters it only when the soil is fully dry, which happens about once a month. Her fern, kept in the same room, is watered twice a week. Based on the passage, which plant needs less frequent watering?	The cactus needs less frequent watering. It is watered only about once a month, when the soil is fully dry, while the fern is watered twice a week. Since once a month is far less often than twice a week, the cactus requires less frequent watering. Final answer: The cactus	cactus	true	[ "cactus", "cactus" ]	89
quantitative	rates and time	mimo-v2.6-flash	A cistern fills in 40 minutes when two taps are open. One tap alone fills it in 60 minutes. If the second tap alone can fill it in 120 minutes, and the first tap is closed after 15 minutes, how many more minutes until the cistern is full?	Both taps together fill at rate 1/40 per minute. In 15 minutes, they fill 15/40 = 3/8 of the cistern, leaving 5/8 empty. After closing the first tap, only the second tap works at rate 1/120 per minute. Time to fill 5/8: (5/8) ÷ (1/120) = (5/8) × 120 = 75 minutes. Final answer: 75 minutes	75 minutes	true	[ "75 minutes", "75" ]	274
code-trace	string slicing result	mimo-v2.6-flash	In Python, what does the expression "harbor7light"[2:9:2] evaluate to?	Starting at index 2, stepping by 2, stopping before index 9, you pick characters at indices 2, 4, 6, and 8: r, o, 7, i. Final answer: ro7i	ro7i	true	[ "\"ro7i\"", "ro7i" ]	159
deduction	spatial arrangement	mimo-v2.6-flash	Five friends sit in a row at a bakery counter: Priya, Omar, Lena, Tomas, and Bei. Omar is second from the left. Bei sits immediately to Omar's right. Lena is at the far left. Where does Tomas sit, counting from the left?	Lena occupies position 1 (far left). Omar is position 2. Bei sits immediately right of Omar, so Bei is position 3. That leaves positions 4 and 5 for Priya and Tomas, in either order. No clue restricts which of those two seats Tomas takes, so his exact spot isn't fixed: he could be fourth or fifth from the left. Final...	not uniquely determined — tomas sits either 4th or 5th from left	true	[ "not uniquely determined — tomas sits either fourth or fifth from left", "not uniquely determined — tomas sits either 4th or 5th from left" ]	437
quantitative	comparing two deals	mimo-v2.6-flash	Mila can buy 8 pens for $12 or 5 pens for $9. She needs exactly 40 pens for a workshop and can mix deals. What is the least she must spend?	She needs 8a + 5b = 40 where a is 8-packs and b is 5-packs. Since 8a + 5b = 40, a must be a multiple of 5, so only two options work: - a = 5, b = 0: 40 pens for 5 × $12 = $60 - a = 0, b = 8: 40 pens for 8 × $9 = $72 Comparing, $60 is cheaper. Final answer: $60	60	true	[ "60", "60" ]	329
cause-effect	spot the flawed plan	mimo-v2.6-flash	Marta wants her basil to grow taller, so she waters it with three times more water each day. After a week the leaves yellow and droop. She concludes the basil needs even more water. What mistake is Marta making, and what is the likely actual cause of the drooping?	Marta assumes that because she changed the water amount and the plant then worsened, the plant must want still more water. She treats her first intervention as proven correct and never considers it as the cause of the problem — a classic error of confusing correlation with causation and repeating a failing approach. T...	she wrongly assumes more water will help when her overwatering likely caused yellowing and drooping through root rot and oxygen-starved roots	true	[ "she assumes more water must help, ignoring that her tripling of water likely caused root rot and oxygen deprivation, which produces yellowing and drooping", "she wrongly assumes more water will help when her overwatering likely caused yellowing and drooping through root rot and oxygen-starved roots" ]	276
quantitative	rates and time	mimo-v2.6-flash	A ferry departs Halden every 20 minutes starting at 7:00 AM, and the crossing to Skagen takes 55 minutes. If Ingrid arrives at the Halden dock at 8:15 AM and boards the next ferry, at what time does she reach Skagen?	Ferries leave at 7:00, 7:20, 7:40, 8:00, 8:20, and so on. Ingrid arrives at 8:15, so the next departure is 8:20. Adding the 55-minute crossing gives 9:15 AM. Final answer: 9:15 AM	9:15am	true	[ "9:15am", "9:15am" ]	151
cause-effect	predict the result of an action	mimo-v2.6-flash	At a market stall, Priya raises the price of her mangoes from 2 to 5 coins each, and every customer still buys the same number of mangoes as before. If her mango costs and stall rent stay unchanged, does Priya's daily profit go up, go down, or stay the same?	Revenue per mango rises from 2 to 5 coins while quantity sold stays the same, so total revenue increases. Her mango costs and stall rent are unchanged, so total costs stay the same. Profit = revenue minus costs, so profit rises. Final answer: go up	go up	true	[ "go up", "go up" ]	96
cause-effect	which option would actually work	mimo-v2.6-flash	Maya's plant keeps wilting even though she waters it daily. The pot has no drainage holes, and the soil is always soggy. She considers: A) water twice daily, B) repot into a container with drainage holes, C) move the plant to a darker closet. Which option most directly fixes the likely cause of wilting?	The soggy soil and lack of drainage suggest the roots are sitting in excess water, which can cause root rot and lead to wilting even though the plant seems "watered." Option A would worsen the problem by adding more water, and option C would reduce light and make things worse. Repotting into a container with drainage h...	b	true	[ "b repot into a container with drainage holes", "b" ]	96
code-trace	dictionary update result	mimo-v2.6-flash	Mira runs this code: d = {"a": 1, "b": 2}; d.update({"b": 5, "c": 3}); d["a"] = d["b"] - d["c"]. What is the value of d["a"]?	Initial dict: a=1, b=2. The update sets b=5 and c=3. Then d["a"] = d["b"] - d["c"] = 5 - 3 = 2. Final answer: 2	2	true	[ "2", "2" ]	84
cause-effect	predict the result of an action	mimo-v2.6-flash	A bakery lowers the price of its almond croissants from $4 to $2 on Fridays. Regularly, 30 sell each Friday. If demand doubles at the lower price and the bakery can supply only 50 per Friday, how many croissants sell that Friday?	Regular demand is 30 per Friday. Doubling gives 60 croissants demanded. The bakery can only supply 50, so just 50 sell. Final answer: 50	50	true	[ "50", "50" ]	73
reading-inference	what can be concluded from a short passage	mimo-v2.6-flash	Marta's bakery closes every Monday. On Tuesday she baked 40 loaves and sold all but 6. On Wednesday she baked twice as many as Tuesday and sold all but 3. How many loaves did Marta sell on Wednesday?	Tuesday she baked 40 loaves. Wednesday she baked twice as many: 80 loaves. She sold all but 3, so she sold 80 - 3 = 77 loaves on Wednesday. Final answer: 77	77	true	[ "77", "77" ]	80
code-trace	string slicing result	mimo-v2.6-flash	Mira writes the code: s = "coriander"; print(s[3:8:2]). What exact string is printed?	Indices: c0 o1 r2 i3 a4 n5 d6 e7 r8. Slice 3:8:2 takes indices 3, 5, 7, which are i, n, e. Final answer: ine	ine	true	[ "ine", "ine" ]	104
everyday-logic	what to do first	mimo-v2.6-flash	Priya needs to bake bread, water the plants, and call the plumber before 5 pm. The plumber's office closes at 4:30, the oven takes 20 minutes to preheat, and watering plants can wait until tomorrow. What should she do first?	Call the plumber first. That's the only task with a hard deadline: their office closes at 4:30, so she must reach them before then. Bread baking has no stated cutoff and can follow (remember the 20-minute preheat), and watering plants can wait until tomorrow anyway. Final answer: Call the plumber first.	call plumber first	true	[ "call plumber first", "call plumber first" ]	121
quantitative	unit conversion in context	mimo-v2.6-flash	Mara jogs 3 laps around a 400-meter track each morning. If her pace is 5 minutes per kilometer, how many minutes does one full jogging session take?	3 laps × 400 meters = 1200 meters = 1.2 km. At 5 minutes per kilometer, 1.2 × 5 = 6 minutes. Final answer: 6	6	true	[ "6", "6 minutes" ]	91
reading-inference	who did what in a short account	mimo-v2.6-flash	At the ferry terminal, Dana handed the tickets to Priya, who dropped one in the water. A stranger picked it up and gave it to Marcus, who boarded first with it. Who was holding the ticket when the ferry departed?	Dana gave the tickets to Priya, who dropped one. A stranger retrieved it and handed it to Marcus, who boarded the ferry first with it. Since Marcus kept the ticket and boarded, he was still holding it when the ferry departed. Final answer: Marcus	marcus	true	[ "marcus", "marcus" ]	87
code-trace	list mutation and aliasing	mimo-v2.6-flash	Maya has list A = [4, 9, 1] and sets B = A. She sorts B, then appends 7 to A, then sets B[0] = 0. What is A[2]?	B = A means both names refer to the same list. Sorting B gives [1, 4, 9], so A is now [1, 4, 9]. Appending 7 to A makes it [1, 4, 9, 7]. Setting B[0] = 0 changes index 0 only, giving [0, 4, 9, 7]. Index 2 is untouched. Final answer: 9	9	true	[ "9", "9" ]	174
cause-effect	why an everyday thing happens	mimo-v2.6-flash	A baker notices her bread rises faster on summer afternoons than on winter mornings, even though she uses the same recipe. What everyday factor explains the difference in rising speed?	The ambient temperature is higher in summer afternoons, which warms the dough and speeds up the yeast's fermentation, making the bread rise faster. On winter mornings the cooler air slows the yeast down. Final answer: Temperature (warmer air speeds up yeast activity)	temperature warmer air speeds up yeast activity	true	[ "temperature — warmer air speeds up yeast activity, making dough rise faster", "temperature warmer air speeds up yeast activity" ]	68
quantitative	simple combinatorics	mimo-v2.6-flash	At a bakery, Mara picks 2 different pastries from 5 kinds (croissant, danish, muffin, scone, tart) and 1 drink from 4 teas. How many different pastry-plus-tea combinations can she order?	Mara chooses 2 pastries from 5 kinds: C(5,2) = 10 ways. She chooses 1 drink from 4 teas: 4 ways. Multiply: 10 × 4 = 40. Final answer: 40	40	true	[ "40", "40" ]	77
code-trace	value of a variable after a loop	mimo-v2.6-flash	Lena starts a counter at 4. She repeats this until the counter is no longer positive: subtract 3, then add 1 if the counter is odd, otherwise subtract 1. What is the counter's value when she stops?	Starting at 4, I trace each iteration: subtract 3, then add 1 if odd, subtract 1 if even. 4 → subtract 3 → 1 (odd) → add 1 → 2 (positive, continue) 2 → subtract 3 → -1 (odd) → add 1 → 0 (not positive, stop) Final answer: 0	0	true	[ "0", "0" ]	291
cause-effect	spot the flawed plan	mimo-v2.6-flash	Mira's bakery loses money on Tuesdays. She notices rainy Tuesdays have fewer customers, so she decides to fix sales by handing out umbrellas at the door on Tuesdays. What flaw makes her plan unlikely to work, and what is one clearly better change she could make instead?	Rain keeps customers away, so the people who never show up never receive an umbrella — the giveaway only reaches those already inside. It also adds cost, deepening the loss. A better change is a Tuesday discount or promotion to draw more customers in the first place. Final answer: Umbrellas don't reach customers who s...	umbrellas don't reach customers who stay home in rain, and they add cost; instead, offer a tuesday discount or promotion to boost demand	true	[ "umbrellas only serve customers who already arrive, so they don't address people staying home in rain; instead she should offer a rainy-tuesday incentive like a discount or delivery option that draws customers in", "umbrellas don't reach customers who stay home in rain, and they add cost; instead, offer a tuesday...	204
everyday-logic	fair sharing of items	mimo-v2.6-flash	Mara has 17 stickers and wants to give each of her 5 cousins the same number, keeping any leftovers for herself. What is the largest number of stickers each cousin can get?	17 divided by 5 gives 3 with a remainder of 2. So each cousin gets 3 stickers, and Mara keeps the 2 leftovers. Final answer: 3	3	true	[ "3", "3" ]	54
quantitative	proportions in a recipe	mimo-v2.6-flash	In Priya's punch, the ratio of mango juice to sparkling water is 5:2. If she uses 350 ml of sparkling water, how many milliliters of mango juice does she need?	Mango juice to sparkling water is 5:2. Each part equals 350 ÷ 2 = 175 ml. Mango juice = 5 × 175 = 875 ml. Final answer: 875 ml	875 ml	true	[ "875", "875 ml" ]	93
everyday-logic	seating people	mimo-v2.6-flash	Six friends sit in a single row of six chairs. Marisol must sit at one of the two ends. Dev refuses to sit next to Marisol. How many valid seating arrangements are there?	Marisol has 2 end seats. Once she's placed, Dev can't sit in the seat beside her, so Dev has 4 of the remaining 5 seats. The other 4 friends arrange in the leftover seats in 4! = 24 ways. Total: 2 × 4 × 24 = 192. Final answer: 192	192	true	[ "192", "192" ]	151
quantitative	comparing two deals	mimo-v2.6-flash	A ferry charges $18 per adult and $11 per child. Mai's family has 2 adults and 3 children; Owen's group has 3 adults and 2 children. Who pays more, and by how many dollars?	Mai's family pays 2 × 18 + 3 × 11 = 36 + 33 = 69 dollars. Owen's group pays 3 × 18 + 2 × 11 = 54 + 22 = 76 dollars. Owen's group pays 76 − 69 = 7 dollars more. Final answer: Owen's group pays $7 more	owen's group pays 7 more	true	[ "owen's group pays 7 more", "owen's group pays more, by 7" ]	151
quantitative	rates and time	mimo-v2.6-flash	Mara rows downstream 12 km in 2 hours and returns upstream in 4 hours. If she rows at her usual paddling speed both ways, how fast is the current, in km per hour?	Downstream speed is 6 km/h and upstream speed is 3 km/h. Let paddling speed be p and current be c, so p+c=6 and p-c=3. Adding gives 2p=9, so p=4.5, and c=6-4.5=1.5. Final answer: 1.5	1.5	true	[ "1.5", "1.5" ]	120
reading-inference	the implied reason	mimo-v2.6-flash	Marta's flight lands at 11:20, and she has told her sister to pick her up at noon. Her sister always allows extra time for airport traffic and lives 25 minutes from the terminal. What time will the sister most likely leave home?	Marta's sister needs to arrive at the terminal by noon. Since the drive takes 25 minutes, she must leave 25 minutes before noon, which is 11:35. The extra time she allows for traffic is already built into her 25-minute estimate, so no additional buffer is specified. Final answer: 11:35	11:35	true	[ "11:35", "11:35" ]	127
quantitative	comparing two deals	mimo-v2.6-flash	Ari pays 240 dollars for 12 jars of honey at the market. Ben pays 260 dollars for 13 jars at a farm shop. Whose price per jar is cheaper, Ari's or Ben's?	Ari pays 240/12 = 20 dollars per jar. Ben pays 260/13 = 20 dollars per jar. Both are the same price. Final answer: Neither; both cost 20 dollars per jar.	neither; both cost 20 dollars per jar	true	[ "neither; both cost 20 per jar", "neither; both cost 20 dollars per jar" ]	94
everyday-logic	fair sharing of items	mimo-v2.6-flash	Maya and her cousin share 14 cookies so that Maya gets 2 more than her cousin. How many cookies does the cousin get?	Let the cousin get x cookies. Maya gets x + 2 cookies. x + (x + 2) = 14 2x + 2 = 14 2x = 12 x = 6 Final answer: 6	6	true	[ "6", "6" ]	93
reading-inference	ordering events from a story	mimo-v2.6-flash	Mira watered the plants after she finished breakfast but before the mail arrived. The mail came at noon. She ate breakfast at 8 a.m., then read until 5 p.m. Did Mira water the plants before or after she finished reading?	Mira finished breakfast at 8 a.m. and the mail arrived at noon, so she watered the plants sometime between 8 a.m. and noon. She read until 5 p.m., which is after noon. Therefore, she watered the plants before she finished reading. Final answer: before	before	true	[ "before", "before" ]	93
reading-inference	ordering events from a story	mimo-v2.6-flash	At the bakery, Marta unlocked the door, turned on the oven, mixed the dough, and finally opened for customers. The oven only worked after the door was unlocked, and she never opens for customers before the dough is mixed. What did Marta do first?	Marta unlocked the door first. The stated sequence and the constraints both place unlocking the door before turning on the oven, and mixing the dough must happen before opening for customers, so nothing displaces unlocking the door from the start. Final answer: unlocked the door	unlocked door	true	[ "unlocked door", "unlocked door" ]	102
reading-inference	who did what in a short account	mimo-v2.6-flash	At the bakery, Marta handed the invoice to her apprentice Theo, who filed it while Marta greeted supplier Ravi. Later, Theo realized the invoice listed two extra flour sacks and told Ravi, who confirmed the error and sent a corrected bill to Marta. Who made the mistake on the original invoice?	Ravi created and sent the original invoice, so the error of listing two extra flour sacks originated with him. Theo only filed it as instructed and later noticed the discrepancy. Ravi confirmed the error himself and issued a corrected bill. Final answer: Ravi	ravi	true	[ "ravi", "ravi" ]	89
cause-effect	simple biology or weather reasoning	mimo-v2.6-flash	A farmer notices that after three days of heavy rain, mushrooms appear overnight in his field, though none grew during the two dry weeks before. What is the most likely cause of the mushrooms appearing only after the rain?	Mushroom mycelium was already living in the soil before the rain. Mycelium needs moisture to produce its fruiting bodies, so during the dry weeks it stayed dormant and invisible. The heavy rain supplied the water that triggered the mycelium to rapidly grow mushrooms, which then appeared overnight. The rain did not crea...	rain provided moisture that triggered pre-existing underground mycelium to fruit and produce mushrooms	true	[ "rain provided moisture that triggered pre-existing underground mycelium to fruit and produce mushrooms", "rain triggered already-present soil fungi to fruit, since mushrooms need moisture to grow" ]	135
everyday-logic	packing a bag	mimo-v2.6-flash	Maya packs a 2 kg camera, a 1.5 kg tent, and a 0.5 kg stove. Her airline limit is 5 kg. She removes the stove and adds a 0.8 kg book. Is her bag within the limit?	Camera 2 kg plus tent 1.5 kg plus book 0.8 kg equals 4.3 kg. That's under the 5 kg limit. Final answer: Yes, 4.3 kg is within the 5 kg limit.	yes, 4.3 kg is within 5 kg limit	true	[ "yes, 4.3 kg is within 5 kg limit", "yes, 4.3 kg is within 5 kg limit" ]	81
code-trace	boolean logic in a condition	mimo-v2.6-flash	In a greenhouse controller, flags are: heat=True, vents=False, rain=True. The alarm sounds when (heat AND rain) OR (vents AND NOT heat) is true, but only if NOT (heat AND vents AND rain). Does the alarm sound, yes or no?	heat=True, vents=False, rain=True. Heat AND rain = True, so the first part is True. Vents AND NOT heat = False, but OR already satisfied → expression = True. The guard: heat AND vents AND rain = True AND False AND True = False, so NOT False = True. True AND True → alarm sounds. Final answer: yes	yes	true	[ "yes", "yes" ]	133
deduction	finding the odd one out	mimo-v2.6-flash	Marta lists four items she packed: a compass, a headlamp, a sleeping bag, and a folding kayak. Three must fit inside her carry-on under 10 liters; one cannot. Which item is the odd one out?	A compass, headlamp, and sleeping bag are all small enough to fit inside a carry-on under 10 liters. A folding kayak, even folded, is far too large for that space. So the kayak is the item that cannot fit. Final answer: folding kayak	folding kayak	true	[ "folding kayak", "folding kayak" ]	129
everyday-logic	choosing between routes	mimo-v2.6-flash	Mira can bike 12 km on the canal path or 17 km on the hill road. Both take 40 minutes. She hates hills but wants the shorter distance. Which route should she take?	Both routes take the same 40 minutes, so time isn't a factor. The canal path is 12 km versus 17 km on the hill road, so it's the shorter distance. It also avoids the hills she hates, so it satisfies both her preferences. Final answer: the canal path (12 km)	canal path 12 km	true	[ "canal path 12 km", "canal path 12 km" ]	118
deduction	matching people to jobs	mimo-v2.6-flash	Three friends — Rina, Omar, and Tessa — work as a chef, pilot, and dentist, in some order. Omar isn't the pilot. Rina can't cook. Tessa recently fixed Omar's teeth. Who is the pilot?	Tessa fixed Omar's teeth, so Omar is the dentist. Rina can't cook, so Rina is the pilot. That leaves Tessa as the chef. Final answer: Rina	rina	true	[ "rina", "rina" ]	69
quantitative	counting with a twist	mimo-v2.6-flash	Mila stacks her laundry: 6 red towels between every pair of blue towels. If she uses 4 blue towels and no other colors, how many red towels does she stack?	With 4 blue towels, there are 3 gaps between consecutive pairs of blue towels. Each gap holds 6 red towels, so 3 × 6 = 18 red towels. Final answer: 18	18	true	[ "18", "18" ]	76
reading-inference	what can be concluded from a short passage	mimo-v2.6-flash	On Tuesday, Priya filled her blue water bottle at the gym fountain before her 6 a.m. swim. The bottle was empty by noon, and she refilled it only at that fountain, which she visits only on swim days. What day of the week did she likely visit the gym fountain?	Priya filled the bottle on Tuesday before her 6 a.m. swim, so the fountain visit happened that morning. Final answer: Tuesday	tuesday	true	[ "tuesday", "tuesday" ]	45
cause-effect	which option would actually work	mimo-v2.6-flash	Mira's greenhouse overheats when the vent opens above 28°C. Today the vent opens at 10 a.m. and the temperature inside is 31°C. She can insulate the roof, move seedlings outside, or lower the vent threshold to 24°C. Which single action will make the vent stop opening?	The vent opens whenever the temperature exceeds 28°C, and it is currently 31°C. Insulating the roof traps more heat, so the temperature rises and the vent opens more. Moving seedlings outside does not change the greenhouse temperature at all, so the vent still opens. Lowering the threshold to 24°C makes the vent open a...	none of 3 actions will stop vent from opening	true	[ "none of 3 actions will stop vent from opening", "none of 3 — vent stays open as long as it's above 28°c" ]	509
quantitative	comparing two deals	mimo-v2.6-flash	Two market stalls sell honey. Priya's stall: 900 grams for $12. Marco's stall: 1.2 kilograms for $15. Which stall offers the lower price per gram, and how many dollars per kilogram cheaper is it?	Priya's price per gram: $12 ÷ 900 = $0.01333 per gram, which is $13.33 per kilogram. Marco's price per gram: $15 ÷ 1200 = $0.0125 per gram, which is $12.50 per kilogram. Marco's stall is cheaper. The difference is $13.33 − $12.50 = $0.83 per kilogram (5/6 of a dollar). Final answer: Marco's stall, $0.83 per kilogram...	marco's stall, 0.83 per kilogram cheaper	true	[ "marco's stall is cheaper by 0.83 per kilogram", "marco's stall, 0.83 per kilogram cheaper" ]	196
cause-effect	which option would actually work	mimo-v2.6-flash	A bakery's bread keeps coming out dense. The baker considers: raise the oven temperature by 25 degrees, skip the second rise, or use yeast that expired two months ago. Which change is most likely to fix the density: keeping everything else the same but using fresh yeast? Answer yes or no.	Expired yeast loses its ability to ferment, so the dough barely rises and comes out dense. Fresh yeast restores proper gas production while everything else stays constant. Raising the oven temperature only affects crust and baking speed, not the rise, and skipping the second rise would make the bread even denser. So sw...	yes	true	[ "yes", "yes" ]	172
everyday-logic	choosing between routes	mimo-v2.6-flash	Mira can bike 12 km at 15 km/h, or walk 4 km at 4 km/h then take a 15-minute bus ride. Which option gets her there faster?	Bike time: 12 km ÷ 15 km/h = 0.8 hours = 48 minutes. Walk + bus time: 4 km ÷ 4 km/h = 1 hour = 60 minutes, plus 15 minutes bus = 75 minutes. 48 minutes is less than 75 minutes, so biking is faster. Final answer: Biking (48 min vs. 75 min)	biking 48 min vs. 75 min	true	[ "biking 48 min vs. 75 min", "biking 48 minutes vs. 75 minutes" ]	151
reading-inference	who did what in a short account	mimo-v2.6-flash	Three friends baked for a school fair: Lena made brownies, Omar made twice as many cookies as Lena made brownies, and Priya made one fewer cookie than Omar. Priya made 11 cookies. Who made brownies?	Priya made 11 cookies, which is one fewer than Omar, so Omar made 12 cookies. Omar made twice as many cookies as Lena made brownies, so Lena made 6 brownies. Final answer: Lena made brownies	lena made brownies	true	[ "lena", "lena made brownies" ]	88
quantitative	rates and time	mimo-v2.6-flash	A tank fills at 12 liters per minute but drains at 5 liters per minute when both valves are open. Ines opens both valves at 9:40 while the tank holds 30 liters. At what time does it reach 65 liters?	Net fill rate is 12 − 5 = 7 liters per minute. Need 65 − 30 = 35 more liters, so 35 ÷ 7 = 5 minutes. Starting at 9:40, it reaches 65 liters at 9:45. Final answer: 9:45	9:45	true	[ "9:45", "9:45" ]	132
cause-effect	simple biology or weather reasoning	mimo-v2.6-flash	Rina's greenhouse thermometer reads 34°C at 2 p.m. even though the vents are open, because a shade cloth she hung that morning was removed. If outdoor temperature is 26°C and the shade cloth drops inside temperature by 9°C, what will the thermometer read once the cloth is back?	Without the cloth, the greenhouse reads 34°C. Hanging the cloth lowers the inside temperature by 9°C, so subtract 9 from 34. The outdoor temperature of 26°C is extra information and doesn't change the calculation. 34 − 9 = 25°C. Final answer: 25°C	25°c	true	[ "25°c", "25°c" ]	144
everyday-logic	timing a sequence of chores	mimo-v2.6-flash	Marta starts folding laundry at 2:15, which takes 20 minutes. She waters the plants next, needing 10 minutes, then vacuums for 35 minutes. The vacuuming finishes at what time?	Marta starts at 2:15. Folding takes 20 minutes, finishing at 2:35. Watering plants takes 10 minutes, finishing at 2:45. Vacuuming takes 35 minutes, finishing at 3:20. Final answer: 3:20	3:20	true	[ "3:20", "3:20" ]	103
quantitative	proportions in a recipe	mimo-v2.6-flash	Mara's punch recipe uses 4 parts pineapple juice to 7 parts ginger ale. She has 12 cups of pineapple juice and plenty of ginger ale, but her punch bowl holds only 20 cups total. How many cups of pineapple juice should she actually use to make the fullest bowl of correctly proportioned punch?	The recipe ratio is 4:7, so total parts = 11. To fill 20 cups: pineapple = (4/11) × 20 = 80/11 ≈ 7.27 cups. She has 12 cups, which is more than enough. Final answer: 80/11 ≈ 7.27 cups	80/11 ≈ 7.27 cups	true	[ "80/11 cups 7.27 cups", "80/11 ≈ 7.27 cups" ]	163
code-trace	off-by-one in a range	mimo-v2.6-flash	Mara runs: total = 0; for i in range(2, 9): if i % 2 == 1: total += i. What is the final value of total?	The loop runs for i from 2 through 8. The odd values are 3, 5, and 7, so total = 3 + 5 + 7 = 15. Final answer: 15	15	true	[ "15", "15" ]	72
everyday-logic	scheduling a day	mimo-v2.6-flash	Priya has four tasks: run for 30 minutes, email for 20, cook for 45, read for 25. She can't cook right after running, must read immediately after emailing, and finishes everything in one block starting at 9:00 with no gaps. What is the earliest time she finishes all tasks?	The total time is 30 + 20 + 45 + 25 = 120 minutes, and with no gaps the finish time is always 9:00 plus 2 hours. A valid order exists: email (9:00–9:20), read (9:20–9:45), run (9:45–10:15), cook (10:15–11:00), which satisfies both constraints. Final answer: 11:00	11:00	true	[ "11:00", "11:00am" ]	268
quantitative	unit conversion in context	mimo-v2.6-flash	Astrid's tank holds 2.5 gallons of water. She fills it using a bottle that holds 500 milliliters. One gallon is about 3,785 milliliters. How many full bottles does she need?	Astrid's tank holds 2.5 × 3,785 = 9,462.5 milliliters. 9,462.5 ÷ 500 = 18.925 bottles. Since she needs full bottles to fill the tank, she needs 19 bottles. Final answer: 19	19	true	[ "19", "19" ]	131
code-trace	what does this short Python print	mimo-v2.6-flash	Rosa runs this code: s = [3, 1, 4] t = s t.append(s.pop(0)) print(s[1] + len(t)) What number is printed?	s and t refer to the same list. s.pop(0) removes 3, leaving [1, 4], and appends it to t, so the shared list is now [1, 4, 3]. Then s[1] is 4 and len(t) is 3, so 4 + 3 = 7. Final answer: 7	7	true	[ "7", "7" ]	148
deduction	matching owners to pets	mimo-v2.6-flash	Three neighbors: Rana, Otis, and Mirek own a ferret, a parrot, and an iguana. Otis is allergic to feathers. Mirek's pet has no legs. Rana doesn't own the ferret. Which pet does Rana own?	Mirek's pet has no legs, so Mirek owns the iguana. Otis is allergic to feathers, so he can't own the parrot; with the iguana taken, Otis owns the ferret. Rana doesn't own the ferret, so Rana owns the parrot. Final answer: parrot	parrot	true	[ "parrot", "rana owns parrot" ]	142
reading-inference	the implied reason	mimo-v2.6-flash	Mila watered the office fern every Monday, but this week she carried it home on Friday evening. On Monday morning a repair notice was taped to the office door, and the fern was back on her desk Wednesday, still wet. Why did Mila take the fern home?	Mila took the fern home because the office was going to be closed for repairs over the weekend. Knowing she wouldn't be back until Wednesday — and that repair work (painting, plumbing, or fumes) could harm the plant — she moved it to her home to keep it safe and watered it there. That's why it came back on Wednesday st...	she took it home to protect and water it while office was closed for weekend repairs	true	[ "she took it home to water it, since repair closure would keep her from reaching it on monday", "she took it home to protect and water it while office was closed for weekend repairs" ]	193
deduction	spatial arrangement	mimo-v2.6-flash	Four friends sit around a round table: Pia, Omar, Lena, and Jae. Pia sits directly opposite Lena. Omar is to Pia's immediate right. Who sits immediately to Jae's right?	Positions around the table: Pia and Lena are opposite each other, so they take positions 1 and 3. Omar sits at Pia's immediate right, taking position 2. That leaves Jae at position 4. Going in the same right-hand direction from Pia to Omar, the person to Jae's right is the next seat around, which is Pia. Final answer...	pia	true	[ "pia", "pia" ]	344
code-trace	list mutation and aliasing	mimo-v2.6-flash	Mara sets a = [4, 8, 2], then writes b = a and a[1] = b[1] + 3. Finally she sorts b in place and prints a. What are the values in a, in order?	a and b reference the same list, so changing a[1] changes b too: [4, 11, 2]. Sorting b in place also sorts a, giving [2, 4, 11]. Final answer: [2, 4, 11]	[2, 4, 11]	true	[ "[2, 4, 11]", "[2, 4, 11]" ]	110
code-trace	dictionary update result	mimo-v2.6-flash	A bakery logs orders in a dict: orders = {"bread": 3}. It runs orders.update({"bread": 2, "cake": 5}), then orders["bread"] += 1, then orders.pop("cake"). What is the value of orders["bread"]?	Starting with bread = 3, the update sets bread to 2 (and adds cake = 5). Then bread += 1 makes it 3. Popping cake doesn't affect bread. Final answer: 3	3	true	[ "3", "3" ]	81
quantitative	proportions in a recipe	mimo-v2.6-flash	A punch recipe uses 4 parts cranberry juice, 3 parts apple cider, and 1 part ginger syrup. If Marisol wants 40 fluid ounces total, how many ounces of ginger syrup should she use?	Total parts = 4 + 3 + 1 = 8 parts. Ginger syrup is 1 out of 8 parts, so: 40 ÷ 8 = 5 ounces of ginger syrup. Final answer: 5	5	true	[ "5", "5 ounces" ]	83
quantitative	unit conversion in context	mimo-v2.6-flash	A recipe calls for 350 grams of flour. If 1 cup equals 125 grams, and Maya has already added 1.5 cups, how many more grams does she need to add?	Maya needs 350 grams total. She added 1.5 cups, which is 1.5 × 125 = 187.5 grams. Subtracting: 350 − 187.5 = 162.5 grams. Final answer: 162.5 grams	162.5 grams	true	[ "162.5 grams", "162.5 grams" ]	106
code-trace	what does this short Python print	mimo-v2.6-flash	Mara runs this: s = "kite"; t = s.upper(); s = s + "s"; print(len(t), t[0]). What two values appear?	s is "kite", so t = s.upper() gives "KITE". Then s = s + "s" changes s to "kites", but t still holds "KITE". So len(t) is 4 and t[0] is "K". Final answer: 4 K	4 k	true	[ "4 k", "4 k" ]	103
quantitative	proportions in a recipe	mimo-v2.6-flash	In Marta's jam recipe, the ratio of strawberries to sugar is 5:2 and sugar to lemon juice is 4:1. If she uses 15 cups of strawberries, how many cups of lemon juice does she need?	Strawberries to sugar is 5:2, so with 15 cups of strawberries, sugar is 6 cups. Sugar to lemon juice is 4:1, so lemon juice is 6 ÷ 4 = 1.5 cups. Final answer: 1.5	1.5	true	[ "1.5", "1.5" ]	128
deduction	ranking by clues	mimo-v2.6-flash	A lighthouse keeper named Bree ranks four bells by pitch, lowest to highest. Clues: the tin bell is higher than the oak bell. The oak bell is higher than the glass bell. The bronze bell is the lowest. What bell is second lowest?	Bronze is lowest. Glass must be below oak, and oak is below tin, so the order from lowest to highest is bronze, glass, oak, tin. That makes glass the second lowest. Final answer: glass	glass	true	[ "glass", "glass" ]	65
code-trace	list mutation and aliasing	mimo-v2.6-flash	Marla runs this code: a = [4, 9]; b = a; b.append(a[0] * 2). What does a[1] equal afterward?	b is an alias for a, so both point to the same list. Appending a[0]2 (42 = 8) adds 8 to that shared list, making it [4, 9, 8]. The element at index 1 is unchanged. Final answer: 9	9	true	[ "9", "9" ]	108
quantitative	counting with a twist	mimo-v2.6-flash	A baker makes trays of 6 muffins. She bakes 4 trays, then gives away 9 muffins and burns one whole tray. How many muffins remain?	4 trays of 6 muffins make 24 muffins. She gives away 9, leaving 15. Burning a whole tray removes 6 more, leaving 9. Final answer: 9	9	true	[ "9", "9" ]	66
quantitative	simple combinatorics	mimo-v2.6-flash	In a class of 9 students, the teacher wants to pick a group of 2 students to water plants and a different group of 3 students to feed the fish. The two groups cannot share anyone. How many ways can she choose both groups?	Choose 2 students from 9 for watering: C(9,2) = 36 ways. Then choose 3 from the remaining 7 for feeding: C(7,3) = 35 ways. Multiply: 36 × 35 = 1260. Final answer: 1260	1260	true	[ "1260", "1260" ]	116
code-trace	string slicing result	mimo-v2.6-flash	In a workshop, labels use codes like "GX-4821-BR". The manager takes a code "TR-7305-YQ", applies the rule: keep characters from position 3 through 6 (counting from 1), then reverse that piece. What four characters result?	Positions 1-10 of "TR-7305-YQ": T, R, -, 7, 3, 0, 5, -, Y, Q. Positions 3-6 give "-730". Reversing that yields "037-". Final answer: 037-	037-	true	[ "037-", "037-" ]	155
cause-effect	which option would actually work	mimo-v2.6-flash	Mara's basil wilts whenever she forgets to water it, but it also wilts when the heating vent dries it out twice a week. She waters daily yet it still wilts on vent days. Which single change most likely fixes it: watering twice daily, moving the pot away from the vent, or fertilizing weekly?	Daily watering already happens, so watering twice daily adds little. Fertilizing doesn't address drying. The vent is the remaining cause of the wilting, so relocating the pot removes that stressor. Final answer: Moving the pot away from the vent	moving pot away from vent	true	[ "moving pot away from vent", "moving pot away from vent" ]	76
quantitative	unit conversion in context	mimo-v2.6-flash	A kiln fires clay at 980 degrees Celsius. The manual lists the maximum in Fahrenheit as 1796 degrees. If Priya sets the kiln to exactly the Fahrenheit maximum, is she within the limit, and what is the difference in Celsius (rounded to the nearest whole degree)?	Converting 1796°F to Celsius: (1796 − 32) × 5/9 = 1764 × 5/9 = 980°C. The kiln's Celsius maximum is 980°C, which equals exactly 1796°F. So Priya is setting it to exactly the limit, meaning she is within it (at, not above, the maximum). The difference between her setting and the kiln's maximum is 0°C. Final answer: Ye...	yes, she is within limit; difference is 0°c	true	[ "yes, she is within limit; difference is 0°c", "yes, she is within limit exactly at it; difference = 0°c" ]	193
everyday-logic	seating people	mimo-v2.6-flash	Four friends sit in a row of four seats numbered 1 to 4. Priya is not at an end. Omar sits immediately right of Priya. Lena sits at seat 4. Which seat does Omar occupy?	Priya can't be at seat 1 or 4, so she's at seat 2 or 3. If Priya were at seat 3, Omar would be at seat 4, but Lena is at seat 4. So Priya is at seat 2, making Omar seat 3. Final answer: 3	3	true	[ "3", "3" ]	126
everyday-logic	what to do first	mimo-v2.6-flash	At her bakery, Rita finishes at 5 pm. The oven needs 20 minutes to cool before cleaning, cleaning takes 15 minutes, and the bus she takes home leaves at 5:50 pm. What is the latest time Rita can finish everything and still catch her bus?	She starts cooling at 5:00, which takes 20 minutes, so cleaning can begin at 5:20. Cleaning takes 15 minutes, finishing at 5:35. Her bus leaves at 5:50, so she has time to spare. The latest she can finish is 5:35. Final answer: 5:35 pm	5:35pm	true	[ "5:35pm", "5:35pm" ]	126
quantitative	counting with a twist	mimo-v2.6-flash	A bakery made 35 croissants. Each box holds 4 croissants, and any leftover croissants are given to the baker. After filling as many full boxes as possible, the baker ate 2 of the leftover croissants. How many croissants were left for the baker to eat afterward?	35 croissants divided by 4 per box gives 8 full boxes with 3 leftover croissants. The baker ate 2 of those 3, leaving 1 croissant. Final answer: 1	1	true	[ "1", "1" ]	79
cause-effect	which option would actually work	mimo-v2.6-flash	A sunflower leans toward a window because its stem cells elongate more on the shaded side. Mara wants it to straighten. Which would actually work: A) painting the sunny side white, B) rotating the pot 180 degrees weekly, C) watering it more, D) playing music near it?	The lean comes from auxin piling up on the shaded side of the stem, so those cells stretch and push the plant toward the light. To straighten it, you need to even out which side gets shaded. - Painting the sunny side white would just reduce light there, making the shading imbalance worse or pointless. - Rotating the p...	b rotating pot 180 degrees weekly	true	[ "b rotating pot 180 degrees weekly", "b rotating pot 180° weekly" ]	252
code-trace	string slicing result	mimo-v2.6-flash	Marta runs this pseudocode on the string "postcard": take the substring from index 2 up to but not including index 5, reverse it, then append its first character to the end. What final string results?	Indices: p=0, o=1, s=2, t=3, c=4, a=5, r=6, d=7. Substring from 2 up to 5 is "stc". Reversed: "cts". Append its first character "c": "ctsc". Final answer: ctsc	ctsc	true	[ "ctsc", "\"ctsc\"" ]	126
everyday-logic	timing a sequence of chores	mimo-v2.6-flash	Marta starts laundry at 2:00. It takes 70 minutes. While it runs she washes dishes (25 minutes) then sweeps (15 minutes). The dryer needs the laundry immediately when it finishes and runs 50 minutes. She also must be free to start the dryer the moment it's needed. What is the earliest time she finishes all chores?	Marta starts laundry at 2:00 and it runs until 3:10. She does dishes from 2:00 to 2:25, then sweeps from 2:25 to 2:50. She's free after 2:50 and waits until 3:10 to start the dryer immediately. The dryer runs 50 minutes, finishing at 4:00. Final answer: 4:00	4:00	true	[ "4:00", "4:00pm" ]	206
quantitative	elapsed time	mimo-v2.6-flash	A ferry leaves Bayport at 9:47 and arrives at Kiln Island after 2 hours 38 minutes, but the ferry waited 12 minutes mid-route, which is included in the total travel time. What time does it arrive, to the nearest minute?	Departure is 9:47. Add 2 hours 38 minutes: 9:47 + 2:00 = 11:47, then + 38 minutes = 12:25. The 12-minute mid-route wait is already counted inside the 2 hours 38 minutes, so nothing more is added. Final answer: 12:25	12:25	true	[ "12:25", "12:25" ]	148
code-trace	what does this short Python print	mimo-v2.6-flash	If the list nums = [4, 1, 7] is processed by: total = 0 for x in nums: if x % 2 == 0: continue total += x print(total * len(nums)) what number is printed?	4 is even so it's skipped. 1 and 7 are odd, so total = 1 + 7 = 8. Length is 3, so 8 * 3 = 24. Final answer: 24	24	true	[ "24", "24" ]	105
deduction	ranking by clues	mimo-v2.6-flash	Five runners finished a race: Pia, Omar, Lina, Rafi, and Tessa. Pia finished ahead of Omar. Lina finished right after Rafi. Tessa was not first. Pia was second. Lina was third. Who finished first?	Pia is second and Lina is third. Rafi must finish before Lina (since Lina is right after Rafi), and since Pia is second, Rafi must be in the only open position ahead of Lina: first. Tessa can't be first anyway, and Omar must be behind Pia. Final answer: Rafi	rafi	true	[ "rafi", "rafi" ]	747
code-trace	off-by-one in a range	mimo-v2.6-flash	A ticket booth charges $3 per customer. Priya runs a loop from customer 1 to customer 10 inclusive, but her code adds the fee only for customers numbered less than 10. She also adds a $2 bonus once after the loop. How many dollars does her code total?	Customers 1 through 9 get charged, so 9 × $3 = $27. Adding the $2 bonus gives $29. Final answer: 29	29	true	[ "29", "29" ]	62
everyday-logic	scheduling a day	mimo-v2.6-flash	Priya must do four errands: bank (closes 3pm), pharmacy (30 min wait), gym (1 hour), and mail a package. She starts at 10am. The pharmacy is inside the gym building, the bank takes 20 minutes, and mailing the package requires 15 minutes at the post office next to the bank. What is the earliest time she can finish every...	Priya can do the bank first (10:00–10:20), then mail the package next door (10:20–10:35). She then goes to the gym building: the gym takes 1 hour (10:35–11:35), and the pharmacy wait takes 30 minutes (11:35–12:05). The bank deadline of 3pm is met comfortably. The ordering doesn't change the total time since all tasks a...	12:05pm	true	[ "12:05pm", "12:05pm" ]	404
reading-inference	ordering events from a story	mimo-v2.6-flash	Maya watered the garden after eating breakfast but before calling her cousin. She called her cousin right after the rain stopped. Which happened first: the rain stopping, watering the garden, or eating breakfast?	Maya ate breakfast first, then watered the garden, then called her cousin. The call came right after the rain stopped, so the rain stopping happened just before the call, but we can't tell exactly whether it was before or after the watering. What's certain is that breakfast came before both. Final answer: eating break...	eating breakfast	true	[ "eating breakfast", "eating breakfast" ]	167
deduction	before/after ordering	mimo-v2.6-flash	Four swimmers finished a race: Priya, Tom, Lena, Marco. Tom finished after Priya but before Lena. Marco finished immediately after Tom. Who came in second, given Marco was third?	Priya finished before Tom, and Marco was immediately after Tom, so the order is Priya, Tom, Marco, Lena. With Marco third, Tom must be second. Final answer: Tom	tom	true	[ "tom", "tom" ]	79
cause-effect	which option would actually work	mimo-v2.6-flash	A vending machine only accepts coins; Lena has a five-dollar bill and no coins. The machine won't give change, and the store clerk cannot exchange bills. Which would actually work: (A) insert the bill, (B) buy a coffee from the café next door and ask for coins in change, (C) shake the machine?	A five-dollar bill won't be accepted since the machine takes only coins, and it gives no change anyway, so A fails. Shaking it would likely break the machine or be pointless, so C fails. Buying coffee with the bill at the café and asking for coin change gives Lena coins she can then use in the machine, so B works. Fin...	b	true	[ "b buy a coffee from café next door and ask for coins in change", "b" ]	83
quantitative	rates and time	mimo-v2.6-flash	A ferry leaves Chikara Island for Port Dennis at 14 km/h. A second ferry leaves Port Dennis for the island one hour later, traveling 21 km/h. The distance is 98 km. How many kilometers from Chikara Island do they meet?	Ferry 1 travels for time t hours at 14 km/h, covering 14t km. Ferry 2 travels for (t−1) hours at 21 km/h, covering 21(t−1) km. Setting their combined distance equal to 98: 14t + 21(t−1) = 98 → 35t − 21 = 98 → 35t = 119 → t = 3.4 hours. Distance from Chikara Island = 14 × 3.4 = 47.6 km. Final answer: 47.6 km	47.6 km	true	[ "47.6 km", "47.6 km" ]	290
reading-inference	ordering events from a story	mimo-v2.6-flash	At dawn, Rina packed her tent. She hiked until noon, ate lunch by the river, then climbed the ridge before dark. At which point in her day did she eat lunch: before packing the tent, after climbing the ridge, or while hiking after packing?	Rina packed her tent at dawn, then hiked until noon. She ate lunch by the river after that hike, and only afterward climbed the ridge before dark. So lunch came after she packed the tent but before she climbed the ridge. Final answer: while hiking after packing	while hiking after packing	true	[ "while hiking after packing", "while hiking after packing" ]	92
code-trace	what does this short Python print	mimo-v2.6-flash	Mara runs this code: s = "brick"; t = s[1:4]; u = t[::-1]; print(len(u) + s.count("c")). What number appears?	s is "brick". s[1:4] gives "ric", so t is "ric". Reversing t gives u = "cir", which has length 3. The string "brick" contains one "c", so s.count("c") is 1. Adding them: 3 + 1 = 4. Final answer: 4	4	true	[ "4", "4" ]	116
code-trace	what does this short Python print	mimo-v2.6-flash	Mara runs this code: x = [3, 8, 2]; x.sort(); x.append(x[0] * 2); print(x[-1] + x[1]). What number is printed?	Start with [3, 8, 2]. Sorting gives [2, 3, 8]. Appending x[0] * 2 = 4 gives [2, 3, 8, 4]. Then x[-1] + x[1] = 4 + 3 = 7. Final answer: 7	7	true	[ "7", "7" ]	138
reading-inference	ordering events from a story	mimo-v2.6-flash	Mira watered the fern after it wilted. Before it wilted, she had left on a trip, and before leaving, she moved the fern away from the window. When she returned, she found the fern pale. In what order did these happen: moving the fern, the trip, finding it pale, watering it? List them in sequence.	Before leaving, Mira moved the fern away from the window. Then she left on her trip. When she returned, she found the fern pale. After it had wilted, she watered it. Final answer: moving the fern, the trip, finding it pale, watering it	moving fern, trip, finding it pale, watering it	true	[ "moving fern, trip, finding it pale, watering it", "moving fern, trip, finding it pale, watering it" ]	95

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OpenThink

OpenThink is 43,101 short reasoning traces for fine-tuning small language models (around 100M parameters). Most reasoning datasets are written for large models and run to thousands of tokens; OpenThink's median trace is 116 tokens, short enough for a sub-150M model to learn from and reproduce.

Every trace is self-consistency checked: the solver answered each question twice, independently, and only questions where both answers agree are kept.

Example

{"category": "deduction", "subtopic": "before/after ordering", "solver": "mimo-v2.6-flash",
 "question": "At a market, Diego buys bread at 8:15, sells a hat at 8:40, buys fruit after selling the hat, and sells a vase before buying the bread. Which transaction happened third?",
 "trace": "The timeline of transactions:\n\n1. Sells a vase (must be before 8:15)\n2. Buys bread at 8:15\n3. Sells a hat at 8:40\n4. Buys fruit (must be after 8:40)\n\nThe third transaction is selling a hat at 8:40.\n\nFinal answer: Selling a hat",
 "answer": "selling a hat", "agree": true, "both_finals": ["selling hat", "selling a hat"], "out_tok": 153}

Every trace ends with a Final answer: line.

Category	Rows
quantitative	9,623
everyday-logic	8,734
code-trace	7,742
deduction	6,404
cause-effect	5,656
reading-inference	4,942
total	43,101

Field	Meaning
`category`, `subtopic`	cell of the generation grid the question came from
`question`	the question, written by the question model
`trace`	the solver's reasoning, ending in `Final answer: ...`
`answer`	the normalized final answer
`both_finals`	the final answers of the two independent solves
`agree`	always `true` (rows that disagreed were dropped)
`solver`, `out_tok`	solver model and the trace's output token count

Configs

default (data/openthink.jsonl): every row with its full reasoning trace.
hybrid (data/openthink_hybrid.jsonl): the same 43,101 questions, but 10,022 rows (almost all cause-effect and reading-inference) keep only the Final answer: line. This is the recipe used for Boris-2-Think.

How it was made

Question. GLM-5.3-flash writes one checkable question from a grid of six categories and many subtopics.
Solve twice. MiMo-v2.6-flash solves it two times independently, concisely (at most about 120 words), ending with a Final answer: line.
Self-consistency filter. Keep only questions where both final answers match after normalization (times, numbers, and prefix or substring equality, since an exact string match wrongly dropped about 23% of good pairs). About 74% of questions pass.
Deduplicate. Near-duplicate templates (same content words, digits removed) are collapsed.

Decontaminate. Every question was 13-gram checked against the evaluation splits of ARC-Easy, ARC-Challenge, HellaSwag, SciQ, OpenBookQA and WinoGrande. Nothing was flagged. PIQA failed to load in that pass, so it was checked separately afterwards: questions and traces against all 4,922 PIQA validation and test items, 0 shared 13-, 10- or 8-word sequences.

Questions and traces were also checked against all 1,000 items of ArithMark-3 (context plus correct ending):

Check	Result
Exact match (normalized)	0
Shared 13-, 10- or 8-word sequences	0, 0, 0
Identical set of numbers and the same final answer	238 pairs, all different problems (highest content-word overlap 0.10)

The numeric matches are coincidences of small numbers: for example, "5 equal pieces, ate 4, left 1" against "5 granola bars shared by 4 people, 1 left". Scripts and full reports are in decontamination/. Not checked against GSM8K.

Agreement between two solves is a filter, not a proof: some rows will still have wrong answers, especially in the open-ended cause-effect and reading-inference categories.

Results

Fine-tuning on OpenThink measurably helps small models. Fine-tuning the 144M-parameter Boris-2 on the hybrid config (2 epochs, about 5 minutes on one V100) gave Boris-2-Think:

Benchmark	Boris-2	Boris-2-Think
ARC-Easy	59.76	63.93
ARC-Challenge	32.00	34.81
ArithMark-3	45.10	49.20
SciQ	85.10	87.10
Open SLM Index	34.15	36.05

An earlier ablation on Boris-2-Preview-2 (two seeds each) separated the effect of the traces from the effect of the questions and answers. Answer-only fine-tuning gave +2.1 Index and full traces +3.0. The traces specifically helped arithmetic (ArithMark-3 +4.3 over answer-only) and slightly hurt HellaSwag (−0.5), which is why the hybrid recipe drops the traces for commonsense-style categories.

Credits

Built by OpenCerebral and published by the SLM Consortium. The generation API credits were donated by DQN Labs; thank you.

Copyright & License

This dataset and all associated files (the "Work") are licensed under the Apache License, Version 2.0 (the "License"); you may not use this dataset except in compliance with the License. You may obtain a copy of the License at:

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.