Answer:
Do you know why stealing is illegal?
It describes an era in history during which lights was hard to come by.
When is a car not a car?
It is a desert oasis where money magically appears or disappears from your pocket.
Why is a river rich?
You kick me, you punch me, and you beat me up all class. When you leave, you don't even say thanks for allowing you to beat me up. What am I?