Clever Puzzles
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Under pressure is the only way I work, and by myself is the only way I am hurt.
What am I?
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What’s the difference between a well-dressed man on a bicycle and a poorly dressed man on a unicycle?
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Use four 9 in a maths equation that equals to 100?
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When you don\’t have me,
you want me, but when you do have me,
you want to give me away.What am I?
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If you drop a yellow hat in the Red Sea,
What does it become?
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You are in a room that is completely bricked in on all four sides, including the ceiling and floor. You have nothing but a mirror and a wooden table in the room with you. How do you get out?
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Jacob and John are competing for the same girl. After years of battling, both decide to settle it by tossing a coin.
John produces a coin, but Jacob doesn’t happen to have one on him. Jacob is sure that the coin John has produced is loaded, i.e. it will come up with heads more than 50% of the time on average.
How do Jacob arrange a fair contest, based purely on chance and not skill, by flipping this coin?
Variation: (COIN BIASING) Jacob and John are competing for the same girl, and decide to settle it with a coin toss. John has known the girl longer than Jacob have, so Jacob agree that it is fair for him to have a chance of winning equal to P, where P > 0.5. However, Jacob only have a fair coin. How can you conduct this contest such that the biased probability is manifested? What is the average number of coin flips needed to determine a winner?
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