Logic Riddles

Question: A man walks into a ballet room with girls. Looks around. How many men does he see?

Question: (1) What am I and (2) how do you spell it?

Question: What goes up white and comes down yellow?

Question: He Knows Everything!! But No one Knows him!!!

Question: There were 2 men climbing on mount everest when one man falls off the edge, the next day both of the men have dinner together. How can this be?