Good Riddles

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: What do thief's get for stealing calendars?

Question: What number do you get when you multiply all of the numbers on a telephone's number pad?

Question: I'm round at the ends and high in the middle.What am I?

Question: I take what you receive and surrender it all by waving my flag.What am I?