Answer:
In a tunnel of darkness lies a beast or iron. It can only attack when pulled back. What is it?
I have roots nobody sees. I am taller than trees. Up up I go but I never grow.
With a halo of water and a tongue of wood; stone as skin long I stood.
What goes into the water black and comes out red?
I have long legs crooked thighs little head and no eyes.
What did the piece of wood say when he saw the screwdriver and screws approaching?