Answer:
What kind of room has no doors or windows?
As a state in America I am round on both sides and high in the middle.
What has legs but doesn't walk?
I'm as simple as a circle worthless as a leader; but when I follow a group their strength increases tenfold. By myself I'm practically nothing.
What did the thief get for stealing the calendar?
What made Cyclops quit teaching?
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic