Answer:
What is black when you buy it, red when you use it, and gray when you throw it away?
I can fly but I have no wings. I can cry but I have no eyes. Wherever I go darkness follows me.
I am free the first time and the second time, but the third time is going to cost you money. What am I?
What comes once in a minute twice in a moment but never in a thousand years?
Cold head and feet; round as a ball; always turning around myself.
A little house full of meat, no door to go in and eat.