Answer:
Whoever made me doesn't want me. Whoever bought me doesn't need me. Whoever uses me doesn't know me. What am I?
I am the building with the most number of stories.
I’m hard as a rock and as light as a feather. I’m passed on to one another. Poor people need me and rich people have me.
I go up, let out a load and then go back down. What am I?
The more you work, the more I'll eat.You keep me full, I'll keep you neat. What am I?
What language does a billboard speak?