What Am I Riddles

There was a green house. Inside the green house there was a white house. Inside the white house there was a red house. Inside the red house there were lot of black babies. What is it?

Thirty white horses stand on a red hill. First they champ. Then they stamp. Then they stand still. What are they?

When I am released to the wind, you look away and you pretend, but away your friends I will send. What am I?

I am a small room but no life lives inside, no matter what weather looms, very cold my residents reside. What am I?

Without fingers, I point. Without arms, I strike. Without feet, I run. What am I?