I consider myself to be more intelligent than most of my peers, but usually don't try and talk on things I know about even when one of my friends states something that is wrong.
However, I've all but lost any math ability I had. I had completed my required high school math classes after my Freshman year of high school, because I was in a special program in middle school that allowed me to take high school courses early. So, I didn't have any type of math class my final 3 years of high school. When I went to college I had to take a placement test to place into a math class and I was placed in a remedial math course (which didn't bode well for an Econ major). So, I changed my major and didn't take any math courses in college other than statistics, which I did surprisingly well with.