Sure, they may have interviewed 50 people to find 5 that come across as really stupid. They could look stupid because they lock up under pressure, etc.Yeah, this kind of video is good for entertainment, but that’s about it. I remember seeing an interview with Pat Sajak back in the day, and the interviewer asked him about people vapor locking and missing simple solutions. He said something to the effect of solving the puzzles being simple while you’re sitting in your easy chair, but when you threw in the lights, cameras, and studio audience, it suddenly wasn’t easy at all.
I’ve heard people (with whom I generally agree) say some really dumb things, and it wasn’t because they’re stupid or their generation is completely useless—it was just because they flubbed what they intended to say, and just happened to be saying it into a microphone.
But these are pretty basic questions; how many states are there? How many items in a dozen? That's at the level of being able to tell time, basic societal functioning stuff.
Would you want these people on your jury?