Answer:
When I'm metal or wood, I help you get home. When I'm flesh and I'm blood. In the darkness I roam.
With four oars it swims but it is always at home. Its back is like armor, tougher than chrome. What is it?
What is that which, while it lives, constantly changes its habit, that is buried before it is dead, and whose tomb is valued wherever it is found?
What side of a cat has the most fur?
What has no arms, hands, or legs but moves the earth?
I am owned by Old McDonald.