What Am I Riddles

Question: I build bridges of silver and crowns of gold.Who am I?

Question: I am your most powerful weapon; I come before your eyes.. I help you seek the truth, yet I often give you lies. What am I?

Question: Stars, scores and springs have them. Fingers, and backs have them. Keys, switches and cups have them. Leaders and mothers have them.

Question: I fall while I'm flying, but can't touch the ground. I'm beaten all day, yet don't make a sound. I try to leave when you keep hitting me, but you always manage to somehow get me. No matter what I do, I always find my way back to you. What could I possibly be?

Question: I am the thing that is used to make your weight. What am i?