Answer:
I'm a type of pizza that is folded in half before cooking to contain a filling
Take one out and scratch my head, I am now black but once was red.
Sharp and long, flag of the world. What is it?
When it comes in, From sea to shore, Twenty paces you'll see, No less, no more.
I am the yellow hem of the sea's blue skirt.
What did the piece of wood say when he saw the screwdriver and screws approaching?