Do you think you're smart? I'm gonna have to ask you to prove it by taking these general knowledge quizzes. They'll test you on all kinds of random stuff, which should be no problem for a genius like ...

Picture puzzles are visual tests that can assess your observation prowess, visual intelligence, and attention to detail.

Here are three shoppers in a queue. Who do you think has stolen from the store? Can you spot the thief in this picture in ...