Answer:
I am round as a bowl, deep as a tub, but all the world's water couldn't fill me up.
Without a bridle, or a saddle, across a thing I ride a-straddle. And those I ride, by help of me, though almost blind, are made to see.
Three little letters. A paradox to some. The worse that it is, the better it becomes.
What is that over the head and under the hat?
By Moon or by Sun, I shall be found. Yet I am undone, if there's no light around.
If lightning strikes an orchestra who is the one most likely to get hit?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?