Answer:
What goes around the world and stays in a corner?
Different lights do make me strange, thus into different sizes I will change
Where humans breath liquid?
What goes through the door without pinching itself? What sits on the stove without burning itself? What sits on the table and is not ashamed?
To cross the water I'm the way, for water I'm above. I touch it not and, truth to say, I neither swim nor move.
Black we are and much admired. Many seek us if they are tired. We tire the horse, and comfort man, and turn White when we've fulfilled your plan.