Answer:
I can speak with my hard metal tongue. But I cannot breathe, for I have no lung. What am I?
I make you weak at the worst of all times. I keep you safe I keep you fine. I make your hands sweat and your heart grow cold. I visit the weak but seldom the bold.
I break down buildings, I crumble mountains but you can't see me. What am I?
Take off my skin I won't cry but you will.
I am a kind of coat that can only be put on when wet. What am I?
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.