Answer:
What can be seen but never found that only hides in the unwound?
I am round as a bowl, deep as a tub, but all the world's water couldn't fill me up.
What instrument can make any sound and be heart, but not touched or seen?
I do not breathe, but I run and jump. I do not eat, but I swim and stretch. I do not drink, but I sleep and stand. I do not think, but I grow and play. I do not see, but you see me everyday.
What starts with a 'T', ends with a 'T', and has T in it?
What did the piece of wood say when he saw the screwdriver and screws approaching?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?