Answer:
I'm a type of pizza that is folded in half before cooking to contain a filling
What goes in the water red, and comes out black?
Iron roof, glass walls, burns and burns and never falls.
Be sure to shout for its answers are weak, but there is no language it cannot speak.
Come up and let us go. Go down and here we stay.
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.