Answer:
Though I am dark Adam married me.
A large oasis in the desert. Come with cash and leave with none.
I hide but my head is outside. What am I?
I'm blue, but when you see me I'm red. You don't see me too often. I'm there for you if you're hurt, but I'm good for you. What am I?
I have Eighty-eight keys but cannot open a single door.
I flow from the Homerβs mouth when he sees doughnuts.