Answer:
I am your mother's brother's only brother in law. Who am I?
Other terms for this handy device include doohicky, doo-dad, and whatchyamacallit.
The more you take, the more you leave behind. What are they?
What can you lose that will cause other people to lose theirs too?
What is used by man, tossed by trees, everywhere but unseen?
It is something you will never see again.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?