A two-headed coin is worth very little, usually between $3 to $10, depending on how well the crafter made the coin and the face value of the coin. These c...
40 puzzlesThe Regular Edition comes with 40 puzzles in 1 split up into 4 different difficulties, ranging from Beginner to Expert. Can you move the red car...
The 9 Hardest Things Programmers Have to Do Naming things. Explaining what I do (or don’t do. Estimating time to complete tasks. Dealing with other people...
5 Simple Ways You Can Fight Spam and Protect Yourself Never give out or post your email address publicly. Think before you click. Do not reply to spam mes...
Pinocchio eats sugar, but refuses to take medicine. When the undertakers come for him, he drinks the medicine and feels better. Afterwards he tells a lie ...
It’s time to admit they know more than you and know what’s best for you. Therefore, you should not only listen to what your parents have to say, but respe...
64 does not equal 65! Or does it? This jigsaw puzzle suggests that it does The paradox is one of a genre of ‘missing square puzzles’. If you begin with an...
The N-queens problem asks: No two queens are on the same row, column, or diagonal. Note that this isn’t an optimization problem: we want to find all possi...
Bartenders would keep a watch on the alcohol consumption of the patrons, keeping an eye on the pints and quarts that were consumed. As a reminder to the p...
Run your tongue over all the surfaces of your teeth. If your teeth feel as smooth as glass, you’ve done a good job of brushing. If some areas still feel a...