A well-known brainteaser, known as Einstein's riddle, has left people scratching their heads as they spend hours trying to ...

A well-known brainteaser has left people scratching their heads as players spend hours trying to work out the right answer - ...

A popular brainteaser has sparked a discussion online as people try to solve it - however, it is said on 2% of people in the ...

Think you’re a pro at solving hard riddles? Put yourself and others to the test, and find out. (Don't worry—answers are ...

The puzzle, known as Einstein's riddle - has left people scratching their heads due despite it asking a very simple question - 'Why keeps fish?' It starts: "Let us assume that there are five ...