Author J K Rowling wrote the final chapter of the last Harry Potter book in "something like 1990", seven years before the release of the first book.
7
A typical lead pencil can draw a line that is 35 miles long.
158
A portion of the water you drink has already been drunk by someone else, maybe several times over.
170
More than 6,000 people with pillow-related injuries check into U.S. emergency rooms every year!
51
Pollen never deteriorates. It is one of the few natural substances that lasts indefinitely.
58
Standard paper cannot be folded in half more than 7 times.
232