Answer:
A man who was outside in the rain without an umbrella or hat didn't get a single hair on his head wet. Why?
I go up when the rain comes down
Golden treasure I contain guarded by hundreds and thousands. Stored in a labyrinth where no man walks Yet men come often to seize my gold. By smoke I am overcome and robbed then left to build my treasure anew.
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. What am I?
What is made of wood, but can't be sawed?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.