Reward and punishment

Question: I will reward you with riches if you show acts of consideration. However, if your acts are ominous, I reward retribution. What am I?

Question: What tastes better than it smells?

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

Question: What asks but never answers?

Question: People see through me, but none pass through without killing me. I can be anywhere, and can be seen double or single. What am I?

Question: What can be broken but never forgotten?