Answer:
As round as an apple. As deep as a cup. All the king's horses can't pull it up.
The one who makes it, sells it. The one who buys it, never uses it. The one that uses it never knows that he’s using it.
In we go, out we go. All around and in a row. Always, always steady flow. When we'll stop, you'll never known. In we go, out we go.
What goes in the water red, and comes out black?
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.
I can only be played on a windy day
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?