Answer:
Different lights do make me strange, thus into different sizes I will change.
What relies on columns but isn't a house, and asks for help but can't speak itself?
I'm a god. I'm a planet. I measure heat.
What has a head, a tail, is brown, and has no legs?
Take one out and scratch my head I am now black but once was red.
Do what he says and you'll be fine, don't and you lose the game.