Answer:
Always wax, yet always wane: I melt, succumbed to the flame. Lighting darkness, with fate unblest, I soon devolve to shapeless mess.
Gets rid of bad ones, short and tall. Tightens when used, one size fits all.
We are all around, yet to us you are half blind. Sunlight makes us invisible, and difficult to find
A man shot two arrows at its center and missed both times, but using a sword swung once at its center and hit it twice.
Ten men's strength, ten men's length. Ten men can't break it, yet a young boy walks off with it.
I am your mother's brother's only brother in law. Who am I?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?