Answer:
Thirty white horses on a red hill, first they champ, then they stamp, then they stand still.
My tongue hangs out as I run over fields and streets all day. I get tied up every morning and untied at night.
My teeth are sharp, my back is straight, to cut things up it is my fate.
What kind of running means walking?
What can be heard and caught but never seen?
What do angels sing in the shower?