Neat little quiz but you need to give more time to see the final score or have it tell you what your final score was for that session. If you aren't following along as you play you won't see your final score since the final message covers your score and then it disappears completely since the click anywhere to play message pops up.
+1 here. The page needs a reworking and tidy up session.
BTW, for me, at least, quite an ego-flattering experience.
I was thinking I was in the know until yesterday.