Put your eyes to the test with this baffling brain teaser which challenges you to spot the odd number. It's not as easy as it sounds, as it requires serious concentration ...

People with high intelligence tend to excel at visual puzzles like this because they can quickly differentiate between small ...

With this in mind, more and more Internet users are looking for ways to train their brains and develop mindfulness. One of ...

Think you've got sharp eyes? Take on the ultimate test and spot 3 differences in two cruise ship pictures within 36 seconds!