Who Do You Think I Am?
Based on search terms, there's a way to find out how old Google thinks you are. Say, for example, I'm Googling "Werther's Original" and "When is Jessica Tandy's birthday", you'll likely assume that I'm 75. Here's what Google has to say about me, based on my search terms (click on the picture to enlarge):
Yes! Google thinks I'm younger than I am! Wait... that might not be a good thing. To find out how old Google thinks you are, click here.