Answer:
I am black within and red without; with four corners round about. What am I?
I go through a door but never go in and never come out.
I let water fall on you while everyone else stays dry.
I'm a word that's hardly there. Take away my start and I'm an herbal flair. What am I?
Goes over all the hills and hollows, Bites hard, but never swallows.
I flow from the Homerβs mouth when he sees doughnuts.