Brainteasers10 randomly selected Brainteasers questions for quizmasters. New random selection made weekly. Next update: Monday 1st June 2026 (Please note: Questions are taken from our database of previous quizzes. Some questions and answers may be outdated.) |
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| 1. | Which of the four images in the bottom row of drawings best completes the series in the top row? |
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A | |
| 2. | Forwards I'm heavy, backwards I'm not. What am I? |
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Ton | |
| 3. | Paul is the youngest of a group of seven people. Brian is older than James and Stuart but younger than John. James is older than Andy but younger than Stuart. Michael is older than Brian but younger than John. Put the seven in order of age, oldest first. |
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John, Michael, Brian, Stuart, James, Andy, and Paul | |
| 4. | How many squares are made by the red lines in this picture? |
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40 | |
| 5. | In a footrace, Brian was neither first nor last. Debbie beat Brian. Brian beat John. Chris was neither first nor last. Chris beat James. John beat Chris. Who came in last? |
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James | |
| 6. | Bus timetable: What time does the bus to Songkhla depart? Krabi - 11:18 Lampang - 12:01 Phuket - 16:08 Rayong - 18:01 Songkhla - |
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19:15 (The alphabetical value of the first letter gives the hour and the alphabetical value of the second letter gives the minutes.) | |
| 7. | What is the missing number? |
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1 or 8 (17×17=289 18×18=324 19×19=361 or 9-8+1=2 4-2+1=3 8-6+1=3) | |
| 8. | Place a word that means 'A QUARREL' after a word that means 'UNELABORATE' to give a nine-letter word used in a court of law. |
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Plaintiff | |
| 9. | In a supermarket, the first 25 customers of the day purchased an average of two items each. After a further 15 customers, the average number of items purchased by each customer rose to eight. What was the average number of items purchased by the last 15 customers only? |
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18 (((40×8)-(25×2))÷15) | |
| 10. | What number should replace the question mark? 28→9 52→15 84→23 20→7 100→? |
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27 (Divide by 4, then add 2) | |
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