What Am I Riddles

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

Question: Its pure body is destroyed after it meets Miss Gold. It can get shorter when it gets older but wind will extinguish it. It love to glow. Breath is its foe. What is it?

Question: Some people peel my skin some people don't, you eat me nevertheless, with or without, what am I?

Question: Without me you will not live. Without me you will not love. Without me you have no courage,what am i?

Question: Whoever makes it, tells it not. Whoever takes it, knows it not. Whoever knows it, wants it not.

What is it?