Pile the Coins

Pile The Coins

You are siting in front of a infinitely large table and there are infinite number of coins on the table. Now you are told that out of these infinite coins there 40 coins which are heads and others are tails. Your task is to make two piles of coins such that both contain equal number of heads.

You can't in any manner know which coin are tails or head, because you are blind fold and wearing thick gloves. You are allowed to move and flip the coins.

The Working Computer

The Working Computer

In a room there are a number of computer and less than half of which are defected. Any computer could be questioned about the status of any other computer in the room. A defected computer could give wrong answers. Task is to find one non defective computer in the least possible number of question.