Answer:
You are my brother, but I am not your brother. Who am I?
What gets sharper the more you use it?
I always have to work with something in my eye. What am I?
u always follow me but I am rarely seen
I have no voice but I can teach you all there is to know. I have spines and hinges but I am not a door. Once I've told you all, I cannot tell you more. What am I?
As round as an apple. As deep as a cup. All the king's horses can't pull it up.
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic