Answer:
I am free the first time and the second time, but the third time is going to cost you money. What am I?
I can sizzle like bacon, I am made with an egg. I peel layers like onions, but still remain whole. I can be long, like a flagpole, yet fit in a hole. What am I?
Tear me off and scratch my head what once red is now black.
I am made of wood but can't be sawed? What am I?
Send poorly behaved children to me and let them sit here.
No matter how little or how much you use me, you change me every month.