Answer:
Cold head and feet; round as a ball; always turning around myself.
I go in hard come out soft. Blow me hard and I’ll make a pop.
I am perfect with a head perfect without a head; Perfect with a tail perfect without a tail; Perfect with either neither or both.
I have all the knowledge you have. But I am so small that I can fit into your hands. What am I?
The shorter I am the bigger I am.
I'm the source of all emotion but I'm caged in a white prison.
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic