An optical illusion is a fascinating visual trick that plays with the way our brain and eyes work together. Sometimes, what ...

Official Mensa IQ Test Free, Accurate, International 2025! Try the Mensa IQ Quiz online with instant results and advanced ...

An optical illusion is a riddle where the viewer perceives the image differently. These illusions come in a variety of types, ...

The chatbot was the ideal test taker—it exhibited no trace of test anxiety, poor concentration or lack of effort. And what about that IQ score?

Test your brainpower with this fun visual puzzle! Spot the hidden letter 'S' among the '8's in just 7 seconds if you have an ...

There are four people in the picture. One of them is not safe. Can you find it in 4 seconds? Test your intelligence now!

ChatGPT took the Wechsler Adult Intelligent Scale (WAIS) IQ test and scored higher than 99.9% of human test takers.

Faxon's test question Imagine two 10 foot putts, one directly downhill and the other directly uphill. The question you need to answer is which of these two putts will come to a complete stop first.

IQ scores have decreased in the US for the first time in decades, new research from scientists at Northwestern University and the University of Oregon suggests.

Performance on cognitive tests does improve with practice. For example, a study found that just taking a common nonverbal reasoning test twice increases scores by roughly the equivalent of eight ...