Answer:
I have a brother. However much we run we do not reach each other.
Four leaves I have.
Tool of thief, toy of queen. Always used to be unseen. Sign of joy, sign of sorrow. Giving all likeness borrowed.
I tremble at each breath of air and yet can heaviest burdens bear.
What goes up a chimney down but can't go down a chimney up?
I am your mother's brother's only brother in law. Who am I?