Answer:
I am a kind of coat that can only be put on when wet. What am I?
The 8 of us go forth and not back to protect our king from a foe's attack. What am I?
I am a little piece of paper, yet sometimes hold lots of value. I am all you need to get into big events, but will cost you. I am an important part of travel. And if lost, you're not coming. What am I?
Deep, deep, do they go. Spreading out as they go. Never needing any air. They are sometimes as fine as hair.
What has many teeth but can't bite?
What language does a billboard speak?