Answer:
Poor people have it. Rich people need it. If you eat it you die. What is it?
I fly yet I have no wings. I cry yet I have no eyes. Darkness follows me. Lower light I never see.
Of the king I am blue and of the peasant I am red. Of the frog I am cold and of the dog I am hot instead.
What goes in the water black and comes out red?
I have 4 wings but cannot fly. I never laugh and never cry. On the same spot I'm always found toiling away with little sound. What am I?
I flow from the Homerβs mouth when he sees doughnuts.