Optical illusions are powerful IQ tests that reveal how sharp your observation skills are! These cleverly designed images ...

IQ tests, or Intelligence Quotient tests, assess a person's cognitive abilities and problem-solving skills. These tests ...

Readers with sharp minds can find the cat’s real owner in the picture in 7 seconds. Are you one of them? Find out now!

Only those with an IQ as high as Einstein will be able to solve this fiendishly challenging brainteaser. In fact, you might ...

Challenge your observation skills with our Picture Puzzle IQ Test! Can you identify the siblings in this image in just 9 ...

With Trump and his followers repeatedly using ‘low IQ’ as an attack line in this election, Roisin Lanigan explores the ploy ...

Fewer than one in five people pass this IQ test, thought to be the shortest in the world only three questions long. The Cognitive Reflection Test has a pass rate of just 17 per cent, leaving the ...

A new study has indicated that children with high IQ scores are more likely to be diagnosed with ADHD later in life.

How good is your home maintenance knowledge? It's time to find out with another round of, "What's Wrong With This Picture." ...

In 2002, the Supreme Court ruled that executing someone with an intellectual disability violates the 8 th Amendment’s ban on ...

Vice President Kamala Harris told CBS News's Norah O'Donnell that she'd take a cognitive test when asked about Donald Trump ...

The US Supreme Court ordered a federal appeals court to take another look at how it decided an Alabama man on death row was ...