What Am I Riddles

Question: Thirty white horses stand on a red hill,
First they champ,
Then they stamp,
Then they stand still.

What are they?

Question: A smooth dance, a ball sport, a place to stay, an Asian country, and a girl's name.

What's her name?

Question: I have 3 eye colors yellow red and green when the red eye opens everybody freezes. What am I?

Question: I'm as small as an ant, as big as a whale. I'll approach like a breeze, but can come like a gale. By some I get hit, but all have shown fear. I'll dance to the music, though I can't hear. Of names I have many, of names I have one. I'm as slow as a snail, but from me you can't run.

Question: I open to close but I close to open.
I'm surrounded by water but I'm never soaking.

What am I?