What Am I Riddles

Question: You can easily touch me, but not see me.
You can throw me out, but not away.

What am I?

Question: I cannot hear or even see,
but sense light and sounds there may be.
Sometimes I end up on the hook,
or even deep into a book.

What am I?

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

What am I?

Question: What has 6 wheels and flies?

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

What are they?