Answer:
What occurs four times in every week, twice in every month, only once in a year but never in a day?
If you have me, you want to tell me. If you tell me, you don't have me.
This is a plant named after a light source. What is it?
What begins to die on a wedding day?
What is so delicate that saying its name breaks it?
What never gets any wetter no matter how hard it rains?