Answer:
It is a cat but not a kitty, You'll never catch on in a city. Its fangs are huge and so its claws, A death machine with paws and jaws. In its own way a royal fellow, Striped with black and clothed in yellow
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?
John Lennon sang about being this toothy creature.
A man walks out of a house that has four walls all facing north. A bird walks past him. What is it?
It rows quickly with four oars but never comes out from under his own roof. What is it?
You use it between your head and your toes, the more it works the thinner it grows.