In 1996, the mathematical logician George Boolos (above) published a paper describing “the hardest logic puzzle ever” which he attributed to the logician Raymond Smullyan. The puzzle has gained much ...

Logical reasoning IQ-based puzzles test your ability to analyse patterns, deduce relationships, and apply rules to reach correct conclusions. They include sequences, syllogisms, matrix problems, ...

We all have a problem-solving toolkit in our heads. But sometimes, you may come across a brain teaser that stumps you. In this case, it helps to look at it from a different angle instead of going ...