Brain Teasers & Puzzles
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There are two insects on a tile. Insect X is sitting on one side of the tile (point A) and Insect Y is sitting opposite on the other side of the tile (point B). Now both of them decide to change their position and thus X starts crawling to point B and Y starts crawling to point A. When they meet and pass each other in between, X takes 20 seconds to reach B and Y takes just 5 seconds to reach A.
Can you calculate the total time each of the insects took to change their positions?
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When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?
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In a mathematical quiz, you are asked the following question:
Use three 9s in a mathematical expression without dividing or multiplying to form the number one.
Can you answer the question?
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