Answer:
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 travels from house to house and is sometimes narrow and sometimes wide but always stays outside?
It holds most knowledge that has ever been said. But is not the brain, is not the head. To feathers and their masters, it's both bane and boonΒ One empty, and one full.
Take off my skin, I won't cry, but you will.
I wear a red robe, with staff in hand, and a stone in my throat.
What do angels sing in the shower?