Good Riddles

Question: Thirty men and only two women, but they hold the most power.
Dressed in black and white, they could fight for hours.

Who are they?

Question: What heavy seven letter word can you take two away from and be left with eight?

Question: Thomas is traveling through Germany and stops at a store to use the bathroom. The only problem is he cannot tell which bathroom is for males and which is for females. He finds somebody to ask which is which, but Thomas doesn't speak German. The person he finds can understand English but can only speak and respond in German.

Thomas really has to go to the bathroom, so what two yes or no questions can he ask to figure out which bathroom is which?

Question: To be here is to be close to those dear,
I see no light but feel warmth from within,
it's lonely here but soon I'll be free.

What am I?

Question: A man finds a small iron coin dated 154 B.C., what's it worth?