There are some people out there who dedicate their lives to understanding more about the word and the way it works. Scientists, philosophers, and so many others devote their time to broadening their understanding of, and in turn our understanding, of the world and of human experience. However, there are also people out there who simply don't have a Scooby Doo.
So, I hope you enjoy if that is the right word, these 15+ times that people didn't have a clue!