Logic Riddles

Question: What is the only place you leave without entering it?

Question: A murderer is condemned to death. He has to choose between three rooms. The first is full of raging fires, the second is full of assassins with loaded guns, and the third is full of lions that haven't eaten in 3 years. Which room is safest for him?

Question: A man drives from San Francisco to Honolulu without any of his tires.

How does he do this?

Question: How much dirt is in a hole that has a radius of 33.2 meters and a height of 78.2 meters?

Question: What happens when you throw a blue rock into the yellow sea?