Optical illusions with hidden images are a fun way to test your IQ and enhance your focus. These tricky illusions challenge ...

Your cat could be a super genius, and this fun "intelligence test" should be able to tell you exactly how smart your feline is. First thing's first, there is no real way to test a cat's actual IQ ...

Most In-Depth: IQ Test for Kids from Fun Education . While many tests online are free, this one cost just under $20. You can see a preview of a few questions, but you must pay to take the entire test.

Fun Facts About IQ Tests: Origins of the IQ Test : The first modern IQ test was developed by Alfred Binet and Théodore Simon in the early 20th century to identify students needing educational ...

Although personality and IQ quizzes may not always be accurate, they’re fun to do to pass the time. According to this ...

Challenge yourself with this fun optical illusion IQ test by spotting the 0 within a grid full of the number 3 in just 5 seconds. This will put your observation skills to the ultimate test!