IQ tests aren't just about numbers and words—they’re also about how well your brain can identify patterns, process visual cues, and apply logic to abstract problems. That’s where non-verbal reasoning ...

There are fads in human resources, just like in every other part of running a business. Lately, one of these fads has been to ask applicants to do puzzles. Just what kind of puzzles varies — logic ...

Download the MP3 audio version of this story here, or sign up for The Explainer’s free daily podcast on iTunes. Last week, the Army National Guard lowered its standards for new recruits in 34 states.