You'll have to stretch your brain to figure out some of these easy, funny and hard riddles for adults If you’re looking to keep some riddles for adults in your back pocket as a way to strike up a ...

Artificial intelligence has taken many forms over the years and is still evolving. Will machines soon surpass human knowledge and understanding?

This database originally covered cases from 1982 to 2012 and has since been updated and expanded numerous times. For analysis and context on this data—including how we built the database, and a change ...