Answer:
I am lighter than the material I am made of. You see parts of me but more of me is hidden underneath.
I have a brother. However much we run we do not reach each other.
What has feet and legs, and nothing else?
I'm a precious stone in a pack of cards. What am I?
I can be short and sometimes hot. When displayed I'm never cold. What am I?
When is it bad luck to see a black cat?