Answer:
What comes down but never back goes up?
The buyer doesn’t want it, the producer doesn’t need it and the user doesn’t know their using it.
What do you call the motherÂ-in-Âlaw of your sister's husband?
What time of day, when written in a capital letters, is the same forwards, backwards and upside down?
Something we eat, and misspell as meet.
When is it bad luck to see a black cat?