Staten Island, N.Y.
While it sounds like a spell Harry Potter would cast, the Quadlangularis Reversum is actually a what?
A: Building at Oxford University B: Chess move
C: Percussion instrument D: Geometric theorem
Alex answers B: Chess move.
The correct answer is C: Percussion instrument.
Alex wins $50,000.
I've already used my 50:50, so I might as well ATA, though I don't have much confidence that they'll know it. I would have thought it was either A or D.