Answer:
I'm really 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.
I'm sometimes white but most often I'm black. I take you there but never bring you back.
You seek me out when your hunger's ripe. I sit on four legs and smoke a pipe.
I can speak with my hard metal tongue. But I cannot breathe, for I have no lung. What am I?
I come without being fetched at night hides away as soon as daylight strikes. Although I may look small I am much mightier than what you can imagine.
I am your mother's brother's only brother in law. Who am I?