Answer:
What has banks but no money a bed but no sleep waves but no ocean?
Part carbon part water I am poison to the fishes. Many falsely claim my name I am the pause that refreshes.
What has a neck but no head?
The more there is the less you see.
I am lighter than air but a hundred people cannot lift me. Careful! I am fragile!
The answer I give is yes, but what I mean is no. What was the question?