Answer:
When you take away the whole from me, there is always some left. What am I?
What goes up and down stairs without moving?
A hole in a pole. Though I fill a hole in white I'm used more by the day and less by the night
A thousand wheels, but move I do not. Call me what I am, call me a lot. What am I?
I go inside boots and outside shoes. What am I?
Often cooked as fillet, this meat comes from an animal that swims underwater.