It's common knowledge that Facebook has age limits to keep anyone under the age of 13 off the site, but it turns out they secretly try to keep the hyper-elderly off the site as well. Marguerite Joseph, a 104-year-old grandmother living in Michigan can't post her real age on Facebook, so to use the site she has to lie about her age. Lots of people lie about their age, but living to be 104 years old is probably the kind of thing you'd want people to know.