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.
who do you think you know but sometimes you don't
What is weightless but it needs two person to hold it?
It can pierce the best armor and make swords crumble with a rub, yet for all its power It can't harm a wooden club.
What two things can always see what the other sees, but can never see each other?
You use it between your head and your toes, the more it works the thinner it grows.