To get a song out of your head, try doing something like a puzzle or Sudoku.
13
The world’s smallest book, “Teeny Ted from Turnip Town”, is 100×70 micrometers in size and requires a scanning electron microscope to read, as light beams are too large.
6
The hands of the clock on the back of the $100 bill are set at approximately 4:10.
72
The number of text messages sent and received in a given day is greater than the world's population.
198
"Strategic incompetence" is the art of avoiding certain tasks by pretending you don't know how to do them.
16
American car horns beep in the tone of F.
66
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
There are 86,400 seconds in a day.
110