Answer:
I have legs but never walk, I may have flowers but no soil, I hold food but never eat.
What can be heard and caught but never seen?
What do you fill with empty hands?
By Moon or by Sun, I shall be found. Yet I am undone, if there's no light around.
All about, but cannot be seen, Can be captured, cannot be held, No throat, but can be heard.
When is it bad luck to see a black cat?