Brain teasers are excellent for boosting critical thinking capabilities. These puzzles engage your brain and provide a ...

There are several different ways to test observation skills withan IQ test. But, solving the brain teaser challenge ...

So, Only 1% With Hawk- Eye Vision can Spot the Missing Number 20 in this Number Scatter Puzzle in 20 Seconds only. I think ...

Spot the hidden number 3 in a 9-second brain teaser optical illusion that tests observation, IQ, and visual perception skills ...

This is a straightforward vocabulary test, so if you've ever taken the SATs, this will feel totally familiar. Take the quiz here. It's highly unlikely you'll ever need to write something without spell ...

Ready to challenge your brain and your eyes at the same time? This optical illusion and IQ-style test is designed to check ...

A new scientific paper I produced along with Sarah Cassidy and other colleagues, published in the journal Learning and Individual Differences, shows that significant increases in general intelligence, ...

A story that made the rounds this week (I wrote about it for COSMOS, but it went as big as the BBC) was the UCL study that linked IQ swings in adolescence to specific structural changes in the brain.