Answer:
You may enter, but you may not come in. I have space, but no room, I have keys, but open no lock. What am I?
I have cities but no houses I have mountains but no trees I have water but no fish. What am I?
I go through a door but never go in, and never come out. What am I?
Travel a mile and I will change, travel a million and I will end as I started. What am I?
I'm a god a planet and a measurer of heat. Who am I?
I am your mother's brother's only brother in law. Who am I?