Answer:
I build bridges of silver and crowns of gold. What am I?
I am shared by goats devils and unicorns.
The more you take away from me, the bigger I shall get. What am I?
Fatherless and motherless. I was born without sin. Roared when I came into the world, but I never spoke again. What am I?
I have green hair a round red head and a long thin white beard.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.