Answer:
A man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?
A dragons tooth in a mortals hand, I kill, I maim, I divide the land.
Fatherless and motherless. Born without sin, roared when it came into the world. And never spoke again.
What is the smallest bridge in the world?
I am two-faced but bear only one. I have no legs but travel widely. Men spill much blood over me. Kings leave their imprint on me. I have greatest power when given away, yet lust for me keeps me locked away.
What is so fragile that saying its name breaks it?