What Am I Riddles

Question: What's cheaper than gold, yet more valuable.Hard to find, but easy to loose

Question: What's higher than mountains, Smaller than trees?

Question: I am a righter of wrongs, I hang down from above, I am coiled like a snake, I am tight as a glove. What am I?

Question: I am made of scraps and rags, Yet when I am put together, I keep you warm in the winter. What am I?

Question: A cat,mouse,and dog all had an instrument,the dog had a flute,the cat had a trombone and the mouse's instrument bugs the dog.What was the mouse's instrument?