Hanging above Water

A man is found hanging in a room 30 feet off the ground. There is nothing else in the room except for a large puddle of water on the ground. The police can’t see any way the man could have climbed the walls to get to where he is hanging.

How did this man hang himself?

Answer

He stood on a large block of ice and tied the rope around his neck. Once the ice melted, he was hung, and all that was left was a puddle of water on the ground.