Riddles are like sneaky little brain workouts, training us to pay attention to the tiniest of details. They challenge us to think critically and creatively, sharpening our problem-solving skills along ...

THIS is the funky brain teaser to test your eye sight and powers of logic. Everyone can see the two people and vase of flowers – but only geniuses can spot the two hidden faces. To be clear ...

Do you think you have an above-average IQ? Can your brain process complex details under pressure? IQ tests and brain teasers ...

A mind-bending quiz created by London Underground staff has left people baffled as they try to work out which letter is ...