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

Do you think you have sharp eyes? Try this optical illusion IQ test and spot the hidden needle without getting distracted by ...

Optical illusion pictures trick the human mind and are regarded as one of the simplest tests to test an individual's intelligence. Optical illusions are highly beneficial for improving attention span ...

These quizzes seek to test your IQ by asking you various challenging questions about all kinds of subjects. Take each quiz to find out if you're a genius (I bet you are). Time to test your vocabulary ...

Okay, first, look carefully at the image. Now move to the 3rd row from the top and move to the 1st number from the right side. There is a “PATO” word, which is the odd word hidden in the repeating ...

From twinkling constellations to stellar life cycles, this starry skywatching quiz will test your cosmic knowledge. When you purchase through links on our site, we may earn an affiliate commission.

Is our level of intelligence inborn or acquired during our lifetime? Is it possible to become smarter and increase our IQ score? This is one of the hottest scientific and politically sensitive ...

Lawrence Whalley received funding from Scottish Government, Henry Smith Charity, BBSRC, MRC, Alzheimer's Research Trust, The Wellcome Trust. Many people object to intelligence tests. Some say IQ test ...