Answer:
What has four wings but cannot fly and uses the wind but does not know why?
I am the greatest teacher out of them all, but alas in the end I kill my pupils.
White fat and fluffy, May even look like a puppy. Seems heavy but is light, Floats about without a worry, But if it turns dark you have to hurry!
A hill full, a hole full, yet you cannot catch a bowl full.
It is a path of cow juice spread across the sky but cannot be seen by the naked eye
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.