There's a line of thought that equates intelligence with “pattern recognition.” How do you stack up on this unique cognitive ...

This is a straightforward vocabulary test, so if you've ever taken the SATs, this will feel totally familiar. Take the quiz here. It's highly unlikely you'll ever need to write something without spell ...

University of Liverpool provides funding as a founding partner of The Conversation UK. London School of Economics and Political Science provides funding as a member of The Conversation UK. Most adults ...

This 1937 version of the Stanford-Binet Intelligence Scales was produced in the United States. It used objects because this IQ test was aimed at children. Credit: SSPL/ Getty Images The Hechinger ...