Answer:
A large oasis in the desert. Come with cash and leave with none. What am I?
I work when I play and play when I work. What am I?
I turn everything around but I cannot move. When you see me you see you!
I fly yet I have no wings. I cry yet I have no eyes. Darkness follows me. Lower light I never see.
What language does a billboard speak?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.