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

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

So, only the Top 140+ IQ with Hawk Eye Vision can find the Correct Directional Arrow. So if you think that your IQ is higher ...

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 ...

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

Do you want to see how locked in you were to the world’s headlines in 2025? Take my 2025 “News IQ” Test to see if you can ...

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, ...

The findings are detailed in a pair of new studies published in The New England Journal of Medicine examining the cognitive abilities of nearly 200,000 participants with COVID-19 test results in ...