Answer:
Turn us on our backs and open up our stomachs you will be the wisest of men though at start a lummox.
What travels from house to house and is sometimes narrow and sometimes wide but always stays outside?
Thirty white horses on a red hill, First they champ, Then they stamp, Then they stand still.
Halo of water, tongue of wood. Skin of stone, long I've stood. My fingers short reach to the sky. Inside my heart men live and die.
Though I have neither legs nor feet, my use is for to go; Although I cannot speak, I tell what others want to know
I’m grown from darkness but shine with a pale light. Very round I am and always a lady's delight.