Answer:
What can fill an entire room without taking up any space?
Railroad crossing without and cars can you spell that without any R's
If a rooster lays an egg on the exact peak of a barn, which side does it fall?
What can you stick between a 3 and a 4 so that the result is more than three but less than four?
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?
What is always coming but never arrives?