Riddles and Brain Teasers

A circular island with a diameter of 30 feet has a 30 foot tree stands at the center. A man cuts the tree down with his chainsaw, making the cut a foot up from the ground. The tree comes crashing down and hits the water but doesn’t splash. Why not?

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It’s winter and the water is frozen.

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Keys to Unlock Your Soul

I am a box that holds keys without locks, yet they can unlock your soul. What am I?

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A piano.

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Presidents and Parents

How could the 22nd and the 24th U.S. Presidents have the same parents, but not be brothers?

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The 22nd and 24th U.S. presidents were both the same person – Grover Cleveland.

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Mixed Animals for $100

At the market you can buy a cow for $10, a pig for $1 and 8 hens for $1. How many animals would you need to buy to get 100 mixed animals for exactly $100?

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7 cows, 21 pigs and 72 hens. The trick to this is finding the combination of cows and hens with the same cost and quantity since pigs are already equal. The magic combination is 7 cows and 72 hens, giving you 79 animals that cost $79 ($70 + $9). Then you just add 21 pigs to get to 100 animals.

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