Password management is a frustrating but necessary fact of modern life on the Internet. However, beyond choosing passwords, many sites require that you choose those increasingly obscure security questions. These security questions are intended to be another source of reference to properly identify you in the event you have forgotten your password.
Here's a tip; you don't have to answer the questions accurately. In fact, you shouldn't. Who knows, you may become famous one day and your city of birth may be widely known, your mother's maiden name may show up in your Wikipedia entry, and your first grade teacher may be identifying herself as such when giving interviews to TMZ. So, I recommend that you answer security information with memorable, but untruthful, answers. For example, whenever you're asked for a "pet name," answer with the "petname" of your significant other!