Here's a sample of the type of test that used to be administered in UK schools to 11 year olds whose academic future depended on how well they scored.
I'm pleased to admit that I would have passed and gone on to grammar school, but very humbled that I didn't get a perfect score, considering that I'm 39 and well-educated.
Go ahead. Take it. I dare you. I double dog dare you to post your score in the comments section!