Very interesting but not entirely shocking PP!
I, for one, is one of those who would probably get at least half of those questions wrong. My geography is fairly good but the political questions would have fried me, why? Cause, I simply do not like or care for it!
I always evaluate a piece of information for its value to me:
~ Will I need this info in the near future? Ever?
~ What will I lose by not knowing this?
If the info is not something that interests me or something I'd certainly need, I would discard it really easy....naturaly.