Answer:
How can a pants pocket be empty and still have something in it?
The eight of us go forth not back to protect our king from a foe's attack. What are we?
Kids play it and Michelangelo sculpted with it.
Casper was a friendly one and Demi Moore made a clay pot with one.
I am neither a guest nor a trespasser in this place. I belong that belongs to me. Where is it?
I am a room that has a roof but no walls. What am I?