Answer:
I don't think or eat or slumber. Or move around or fear thunder. Just like you I look the same but I can't harm you or be your bane.
Iron on a mammal. Mammal on your feet.
I am nothing but holes tied to holes, yet am strong as iron.
You use it between your head and your toes, the more it works the thinner it grows.
What has four legs during the day; and six or eight during the night?
What did the piece of wood say when he saw the screwdriver and screws approaching?