If you have it, you want to share it. If you share it, you don't have it. What is it?
A secret.

The madami you have of it, the less you see. What is it?
Darkness

What book was once owned sa pamamagitan ng only the wealthy, but now everyone can have it?
You can't buy it in a bookstore or take it from a library.
A telephone book.

What gets whiter the dirtier that it gets?
A chalkboard

What happened in the middle of the twentieth century that will not happen again for 4,000 years?
The taon 1961 can be read upside down and that won't happen again until 6009!

What has no beginning, end, or middle?
A doughnut.

What has to be...