Answer:
Use me to reward good behavior.
I have cities with no people forests with no trees and oceans with no water.
Open me, and you can't see me without a mirror. Close me and you can't see me at all. What am I?
I have an eye, but I can't see. I usually have to work with something in my eye. What am I?
What flies without wings?
What language does a billboard speak?
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic