Answer:
I can be found in water but never wet
The person who makes it sells it. The person who buys it never uses it. The person who uses it never sees it. What is it?
What comes once in a year twice in a week but never in a day?
I have married many women but have never been married. What am I?
Weight in my belly, trees on my back, nails in my ribs, feet I do lack. What am I?
No matter how little or how much you use me, you change me every month.