Answer:
I fly through the air on small feathered wings, seeking out life and destroying all things.
Neither bought nor sold but more valuable than gold. It is built but not by hand. What is it?
What flies without wings?
This thing runs but cannot walk, sometimes sings but never talks. Lacks arms, has hands; lacks a head but has a face.
You must keep this thing. Its loss will affect your brothers. For once yours is lost, it will soon be lost by others.
I am your mother's brother's only brother in law. Who am I?