Answer:
What is seen in the water and in the sky? It is part of the rainbow and can be in your eye
What devours all and can kill a king. Destroy a town and crushes mountains down?
What goes up when rain comes down?
Brings celebrities into your home every night.
What is found over your head but under your hat?
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.