Answer:
I am owned by every man though my length differs. Their wives uses me after getting married.
They come out at night without being called. They are lost in the day without being stolen. What are they?
I am a precious stone as clear as diamond. Seek me out while the sun's near the horizon. Though you can walk on water with my power try to keep me and I'll vanish in an hour.
I am black, white, and read all over. What am I?
The sun bakes me, the hand breaks me, the foot treads on me, and the mouth tastes me. What am I?
No matter how little or how much you use me, you change me every month.