Answer:
I run up and down the stairs without moving. What am I?
I am sometimes referred to as chips
I help boats park
To cross the water, I'm the way. For water I'm above, I touch it not and truth to say, I neither swim nor move. What am I?
What can be as big as an elephant but weighs nothing?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.