Add Yahoo as a preferred source to see more of our stories on Google. IQ tests promise a clean number, but intelligence has never worked that way. Real cognitive ability shows up in how people reason ...

Discover the reasons why people with high IQs avoid certain behaviors and situations that frustrate them.

People who think at a genius level don't talk more — instead, they ask smart questions that show how curious they are. These 11 questions reveal how intelligent people think and stay mentally engaged.