Hey Sherol, We learned Bayes theorem in class right? I found a cool example of that thought you might like to see. Answer by Michael Hochster to How do you explain Bayes' Theorem in simple words? http://www.quora.com/Probability/How-do-you-explain-Bayes-Theorem-in-simple-words/answer/Michael-Hochster?srid=ODx4&share=1 I find a lot of cool stuff on there if I find anything should I send it to you? Also found an interesting video / riddle: http://www.dailypuzzle.com/each-teaser.php?id=123 https://www.khanacademy.org/math/recreational-math/brain-teasers/v/toggler-brain-teaser Video is the same as the riddle...