I'm red, blue, purple, and green

Question: I'm red, blue, purple and green.
No one can reach me, not even the queen.

What am I?

Question: What tastes better than it smells?

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

Question: What loses its head in the morning and gets it back at night?

Question: What two things can you never eat for breakfast?

Question: What asks but never answers?