Im n't sure abt it... just guessing ...
1.If you have it, you want to share it. If you share it, you don't have it. What is it?
OUR PERSONAL THINGS AND THOUGHTS
2.The more you have of it, the less you see. What is it?
BLOOD
3.What book was once owned by only the wealthy, but now everyone can have it?
You can't buy it in a bookstore or take it from a library.
Its none other than that CHEQUE BOOK
4.What gets whiter the dirtier that it gets?
Purinjathane solradhukku
5.What has no beginning, end, or middle?
Circle,Egg(things which r in round in shape)
6.What has to be broken before it can be used?
Egg
7.What does no man want, yet no man wants to lose?
Job