Answer:
What is it that you must give before you can keep it.
What can you fold but not crease?
The sharp slim blade, that cuts the wind. What is it?
What asks but never answers?
What can't you see, hear or feel, until its too late. What shadows love, and shopkeepers hate?
All about, but cannot be seen, Can be captured, cannot be held, No throat, but can be heard. Who am I?