To get a song out of your head, try doing something like a puzzle or Sudoku.
13
"Strategic incompetence" is the art of avoiding certain tasks by pretending you don't know how to do them.
16
You can start a fire with ice.
367
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
No piece of square dry paper can be folded more than 7 times in half!
26
A man earned 4 million airline miles for free without breaking any laws by using his credit card to purchase free-delivery $1 coins from the U.S. mint.
11
Americans are responsible for generating roughly 20% percent of the garbage in the world.
29

