The yin-yang pattern's earliest use is in Rome - not China!
125
If you had 10 billion $1 notes and spent one every second of every day, it would require 317 years for you to go broke.
109
You can actually sharpen the blades on a pencil sharpener by wrapping your pencils in aluminum foil before inserting them.
209
One human hair can support 3 ounces.
191
Sunflowers can be used to clean up radioactive waste.
17
To get a song out of your head, try doing something like a puzzle or Sudoku.
13
More Americans have died in car accidents than have died in all the wars ever fought by the United States.
55