Logic Riddles

Question: Two is company and 3 is a crowd. What is 4 and 5?

Question: Spell it

Question: Wednesday, Tom and Joe went to a restaurant and ate dinner. When they were done they paid for the food and left. But Tom and Joe didn't pay for the food.

Who did?

Question: I can be flipped and broken but I never move. I can be closed, and opened, and sometimes removed. I am sealed by hands. What am I?

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?