Answer:
Bury deep, Pile on stones, My mind will always Dig up them bones
I turn around once. What is out will not get in. I turn around again. What is in will not get out.
What doesn't get any wetter, no matter how much rain falls on it?
Do you know what you can hold without ever touching it?
What relies on columns but isn't a house, and asks for help but can't speak itself?
What did the piece of wood say when he saw the screwdriver and screws approaching?