Answer:
A large oasis in the desert. Come with cash and leave with none. What am I?
What has keys but no locks a space but no room and you can enter but can't go in?
I am a nut with a hole
What is harder to catch the faster you run?
Curtail me thrice I am a youth; behead me once a snake; complete I'm often used in truth when certain steps you'd take.
What did the piece of wood say when he saw the screwdriver and screws approaching?