A brainteaser, asks users to move six glasses to create a new pattern - and it's left many scratching their heads. But can ...

Brainteasers have been proven to improve your brain age over time - so why not try out this 'empty glass' brainteaser on National Puzzle Day to put your mind to the test ...

The challenge has been designed to identify people with the highest IQ in the country - and it's certainly left many people ...