Good Riddles

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: Why would a hair stylist rather cut the hair of two brunettes than one red head?

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

What am I?

Question: I have 6 faces and 21 eyes, but can't see a thing. What am I?