3. What is black when you buy it, red when you use it, and gray when you throw it away?
Coal...?
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.
Dictionary... Bible... ?
4. What gets whiter the dirtier that it gets?
Condom.
5. What happened in the middle of the twentieth century that will not happen again for 4,000 years?
If it's not Hale Bop or another comet of some sort, then it's gotta do with numbers
6. What has no beginning, end, or middle?
Circle. Planes and lines (as well as anything else infinite) have none of those, either
10. Big as a biscuit, deep as a cup, even a river can't fill it up. What is it?
My heart
