Quick thinking and attention to detail are essential in solving this brain teaser. Can you spot who is pregnant?

Find out how smart you are (and increase your IQ) with our classical IQ test. This classical IQ test measures several factors of intelligence, namely logical reasoning, math skills, language ...

This 5-second puzzle has gained popularity because it’s a quick yet powerful way to test your observation skills and intelligence. For those with an IQ of 130 or higher, spotting small details ...

These mind-bending puzzles not only challenge our visual perception but also engage various cognitive abilities, including IQ ...

Highly accurate (both sensitive and specific), cheap and simple rapid diagnostic tests (RDTs ... requires considerable expertise, by a 'field test' that is more appropriate for use in a VL ...

Give your broadband connection a quick test to see if you’re getting the internet speeds you’re paying for. Trisha Jandoc is an associate writer at CNET covering broadband and everything ...

Rapid tests can be performed by staff with limited laboratory training. However, reading the test result relies on subjective interpretation, and when the result is borderline, experienced staff give ...

The questions are similar in style to those which are likely to be included in an accredited IQ test. Although answering the mini test will not show an accurate IQ score, it can however give a ...