Everyone wants to think they are smart, but intelligence is a spectrum. One of the easiest ways to evaluate your cognitive skills is to take an IQ test, which evaluates your mental ability based on a set of standardized questions. The average IQ test score is...

In order to lead an entire country, presidents must have a sufficiently high level of intelligence. In 2006, University of California professor Dean Simonton used a special technique that allowed him to calculate the IQs of all US presidents in four different categories. Summing them up, you can get the average ...

The human brain's ability to improve is a topic that has occupied our imaginations for centuries. The idea that with the right tools, the right approach and the right attitude, we can become better and smarter than we are. We grab onto myths like ...