Answer:
You throw me away, I find my way back. Traditionally, I'm wooden with an arch in my back. What am I?
I go up when the rain comes down
The more you take away from me the bigger I shall get.
Open me, and you can't see me without a mirror. Close me and you can't see me at all. What am I?
I am a nut with a hole. What am I?
I am your mother's brother's only brother in law. Who am I?