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

The আরো আপনি have of it, the less আপনি see. What is it?
Darkness

What book was once owned দ্বারা only the wealthy, but now everyone can have it?
You can't buy it in a bookstore অথবা 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 বছর 1961 can be read upside down and that won't happen again until 6009!

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

What has to be...