A new series of baffling brain teasers is giving you the chance to put your mind to the ultimate test - and see just how eagle-eyed you really are. Show off your brain power by spotting the various ...

Optical illusions are a great way to assess how sharp your observation is actually. Some of the puzzles trick the mind with colours and patterns, and others test you to identify something in plain ...

Visual skill tests are a form of brain teaser puzzles that test the reader's critical thinking and problem-solving skills. These challenges have the potential to boost intelligence and improve ...