Answer:
I am alive without breath and cold as death. I am never thirsty but always drinking.
I come with a train and go with a train and the train doesn't need me but can't go without me.
No legs have I to dance, no lungs have I to breathe. No life have I to live or die, and yet I do all three. What am I?
You find me behind the stars; or in a sixth seventh or third. It takes something round a computer and me to make pie. I am bigger than anything you can think of.
I am brown and sticky
What made Cyclops quit teaching?