J.K. Rowling may have published her final Harry Potter book nearly 9 years ago, but that hasn't stopped her from adding to her creation via Twitter. It sometimes seems like barely a day goes by without Rowling letting fans know that Dumbledore is gay or that Ron Weasley's allergic to shellfish or that Sirius Black is still dead.

Since you probably haven't been able to keep up with all of these quasi-canon additions to the series, we prepared a little quiz for you. Are these real Harry Potter facts from J.K. Rowling's Twitter feed, or just (to speak British for a moment) utter rubbish? Note: Some of the real things J.K. Rowling tweeted have been slightly edited for clarity.