Answer:
I don't live within a house nor do I live without. Most will use me when they come in and again when they go out.
I am free the first time and the second time, but the third time is going to cost you money. What am I?
I have no bed to sleep and no palace to live. I don't have a single coin but I am known as king. What am I?
I am a room that has a roof but no walls. What am I?
I will disappear every time you say my name. What am I?
When is it bad luck to see a black cat?