Answer:
I'm a type of pizza that is folded in half before cooking to contain a filling
What gets beaten, and whipped, but never cries?
What kind of nut is empty at the center and has no shell.
This thing all things devours: Birds, beasts, trees, flowers; Gnaws iron, bites steel; Grinds hard stones to meal; Slays king, ruins town, And beats high mountains down.
What lies in a tunnel of darkness. That can only attack when pulled back?
It weighs next to nothing but no one can hold it for long. What is it?