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 ...

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.

The British mathematician Alan Turing wrote in 1950, "I propose to consider the question, 'Can machines think?'" His inquiry framed the discussion for decades of artificial intelligence research. For ...