TAKE THE TEST I'm fairly sure that all the 5th graders would fail this test and judging from the source "Supposedly 96 % of all High School Seniors FAILED this test, AND if that's not bad enough, 50% of all individuals over 50 did too!" So this is your big chance to shine and earn a few seconds of your fifteen minutes of fame.
BTW I got 83% myself. Some of the questions are a bit obscure. At least I passed.