Answer:
What is it that after you take away the whole, some still remains?
What never asks questions but receives a lot of answers?
What has thousands of ribs and two backbones?
What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?
What do we see every day, kings see rarely, and God never sees?
When is it bad luck to see a black cat?