The 'hardest logic puzzle in the world' has left many utterly baffled, with scores of people throwing in the towel after mere moments of attempting to solve it. The notorious blue eyes conundrum ...

Logic puzzles present real challenges ... That's the number of squares you should find in the graphic. If your initial response wasn't as accurate, don't fret. With this square-counting puzzle ...

Solving logic puzzles is becoming increasingly popular ... Sometimes these puzzles are equations; other times, they're ...