Answer:
I am your mother's brother's only brother in law. Who am I?
What can go up but never come down?
What should you do when you see a green man?
Deep, deep, do they go. Spreading out as they go. Never needing any air. They are sometimes as fine as hair
What is part of you and all around you but if it entangles you, it will kill you?
The more of me you take, the more I appear behind you. What am I?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?