Answer:
I eat I live.I breathe I live. I drink I die.
I am heavy forward, but backward I'm not. What am I?
You cannot keep me until you have given me. What am I?
In a tunnel of darkness lies a beast or iron. It can only attack when pulled back. What is it?
When I point up, it's bright. When I point down, it's dark. What am I?
A little house full of meat, no door to go in and eat.