To work on The Simpsons, you've got to be pretty darn intelligent. Many of the writers graduated from top tier colleges with degrees in mathematics and science and it shows (late-night host Conan O'Brien was actually one of the series' first writers, penning classic episodes like "Marge vs. the Monorail", which you can stream right now on Disney+.)

Sure, a lot of the gags on the show are beyond what children can understand, but some are so smart they can be baffling to adults as well. You might be familiar with The Simpsons' most adult gags or its best gags that targeted religion, but these smart Simpsons jokes went over your head decades ago and probably stayed there.