Answer:
When you buy me I am costly, but the only use I have is hanging only. What am I?
Die without me, never thank me. Walk right through me, never feel me. Always watching, never speaking. Always lurking, never seen. What am I?
What has feet and legs, and nothing else?
Long and thin red within with a nail at the end.
I am a table you can eat. What am I?
Why was the cook arrested?