What am I?

Question: I am full of light but left in the dark. I have a temper that pushes my single sibling. I have many friends very far away and I disappear in the light when it is my sibling's turn to push me back. What am I?

Question: Everyone asks for me but yet everyone hates to face me ,for someone I am agony for others I am relief! Who am I?

Question: Follower of man, Dark as night, A trained Choreographer, Comes after light.

Question: What tastes better than it smells?

Question: What goes in the water black and comes out red?

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?