Want to feel old? 'Buffy the Vampire Slayer' is 20 years old today. Yes, 2-0. If that doesn't give you a case of the wiggins, nothing will.

We know it's hard to believe that everyone's favourite vampire slayer was actually a late '90s creation but lo and behold, today marks the 20th anniversary of the first episode of Joss Whedon's cult hit airing in the U.S.

And what better way to celebrate than to test your Slayer knowledge?

Fair warning, this quiz starts easy enough but gets pretty intense. If you can get full marks without cheating, let us know.