There is a table on which a number of coins are placed. You also know that there are as many coins with Head up as many coins with Tail up. Now you have to divide the coins (number of coins is even) into two equal piles such that number of coins with Heads up and Tails up in either piles be the same. The catch is you are blind folded and you cannot determine the sides (for sure) if you are blinded.
Divide in any 2 halves.... Just flip all the coins of any of the half. It will now contain exactly SAME number of Heads/Tails as the other part.
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