Mulling over perplexing puzzles or solving a difficult brain teaser can really ... It's known as the 'A Man Steals $100 From a Shop' riddle. And one thing's for sure: it's making people think. Can you ...

For some people, solving a jigsaw puzzle is a relaxing ... “There isn’t a single strategy that will work for 100% of puzzles, ...

Fancy yourself as an expert codebreaker or cyber sleuth? Now is your chance to prove whether you could have what it takes. Under pressure to keep the country safe ...