Good Riddles

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

Question: A blue man lives in a blue house. A green man lives in a green house. Who lives in the white house?

Question: A hobo picks up cigarette butts from the ground and can make a cigarette with 4 butts. If he finds 16 cigarette butts, how many cigarettes can he make?

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

What am I?

Question: You want to go to a club but to get in you must respond correctly to what the bouncer says. The bouncer says 12 to one man and the man responds 6, he is allowed in. The bouncer says 6 to another man and the man says 3, he too is allowed in. A third man walks up and the bouncer says 10 and the man responds 5, but he is denied entry.

What number should he have said to get in?