Brainteasers10 randomly selected Brainteasers questions for quizmasters. New random selection made weekly. Next update: Monday 19th 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 Some questions and answers may be outdated.)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. | In a spelling test consisting of 20 words, John spelt only two correctly at the first attempt. After learning the spellings he tried the same 20 words again. If his average over the two attempts was nine, how many of the 20 words did he spell correctly on the second attempt? |
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16 | |
| 2. | Which of these four scrambled words is the "odd one out" when unscrambled? |
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(d) BEIJING (Chicago, Houston and Phoenix are in the United States) | |
| 3. | Stu has three times as many items in his shopping basket as Andy has. Trev has nine more than Andy and Brian has five less than Trev. Brian has 10 items. How many does Stu have? |
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18 (Andy 6 and Trev 15) | |
| 4. | Forwards I'm heavy, backwards I'm not. What am I? |
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Ton | |
| 5. | A car has travelled 240 miles at 60 mph. It began its journey with a full tank of 12 gallons, but the tank has been leaking throughout the journey and is now empty. The car ran at 40 miles per gallon. How many gallons of fuel does it leak per hour? |
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1½ | |
| 6. | If the day before the day before yesterday was three days after Wednesday, what day would it be today? |
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Tuesday | |
| 7. | 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 | |
| 8. | 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 | |
| 9. | 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 | |
| 10. | In a lake, there is a patch of lily pads. Every day, the patch doubles in size. If it takes 48 days for the patch to cover the entire lake, how long would it take for the patch to cover half of the lake? |
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47 days | |
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