Good Riddles

Question: There once was a green room, what was in it

Question: What is the Capitol of Las Vegas

Question: A man is on a game show. To win the game show and get a car, he must exit an empty room exactly one 1/2 hour later. He is given one candle that lasts exactly one hour and a lighter. Exactly 30 min later the man exits the room and wins his car. How did he do it?

Question: What is green and has wheels?

Question: What takes you up and brings you down but never moves?