Brainteasers10 randomly selected Brainteasers questions for quizmasters. New random selection made weekly. Next update: Monday 26th October 2026 (Please note: Questions are taken from our database of previous quizzes. Some questions and answers may be outdated.) |
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| 1. | I am an alloy. Change one letter and I am pasture land. Change another letter and I am a hard, transparent substance. Change a further letter and I am a group of pupils. Change one final letter and I am a confrontation. What was I and what did I become? |
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Brass / Clash (Brass Grass Glass Class Clash) | |
| 2. | Insert the missing vowels and spaces in the following to reveal a well-known proverb: PPRNCSCNBDCPTV |
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Appearances can be deceptive | |
| 3. | Three volumes of Lord of the Rings sit in order on a shelf. Each is 30 mm thick, with 26 mm of pages and 2 mm for each cover. A bookworm munches from page 1 of the first volume through to the last page of the third volume. How far does it travel? |
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34 mm | |
| 4. | Two racing cars cross the finish line side-by-side. The second-placed car is travelling at 270 km/h and crosses the line 1/100th of a second behind the first. How many centimetres did the first car finish ahead of the second? |
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75 (27,000,000 cm ÷ 60 ÷ 60 ÷ 100) | |
| 5. | Only one of these three statements is true. In which box is the car? |
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2 (If in box 1, then 1 and 2 are correct. If in box 3, then 2 and 3 are correct. If in box 2, only 3 is correct.) | |
| 6. | If FP=10 and HX=16, what does DS=? |
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15 (the count of letters alphabetically between each letter) | |
| 7. | What number and letter continues this sequence? 12 T 17 E 22 F 27 N ? ? |
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32 F (The numbers increase by 5. The letters are the first letter of the numbers found by adding the two digits together.) | |
| 8. | Susan is Debbie's only husband's mother-in-law's only husband's only daughter's only daughter. What relation is Susan to Debbie? |
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Debbie's daughter (Debbie's mother's husband is Debbie's father, his daughter is Debbie, and Susan is her daughter) | |
| 9. | Which of the four images in the bottom row of drawings best completes the series in the top row? |
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A | |
| 10. | What two numbers come next in this series? 1 10 3 9 5 8 7 7 9 6 ? ? |
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11 5 | |
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