Writing instrument; exam cheating device
- "Now, I must warn you that the most stringent anti-cheating charms have been applied to your examination papers. Auto-Answer Quills are banned from the examination hall, as are Remembralls, Detachable Cribbing Cuffs and Self-Correcting Ink."
- —Professor McGonagall talking to the fifth years about the upcoming O.W.L.'s[src]
Auto-Answer Quills are magical Quills that most likely write out the answer to questions automatically.
They are banned during written examinations at Hogwarts School of Witchcraft and Wizardry.
- Harry Potter and the Order of the Phoenix (Mentioned only)