Answer:
What can be heard in court or used to carry briefs?
By Moon or by Sun I shall be found. Yet I am undone if there's no light around.
Two in a whole and four in a pair. Six in a trio you see. Eight's a quartet but what you must get is the name that fits just one of me.
I am known for my natural tuxedo and marching
I had a bright start but I couldn't take the pressure. I consume everything yet I don't eat anything.
What never gets any wetter no matter how hard it rains?