That reminds me... not sure if this counts since it wasn't really a question, but I was talking to this girl and driving to Alaska somehow got brought up. She said 'ha ha you think I'm stupid, like my IQ is only 150. I know you can't drive to Alaska.' At first I thought she was trolling, but then I realized she actually thought Alaska was in the middle of the ocean due to it's place on many US maps lol. It's a good thing she was very attractive.
When I was a freshman in college I took a date to Bennigan's. Looking around at the decor, she asks, "So I guess this place is Italian huh?"
Not really a question but the stoopidest thing i've ever heard someone tell me was in 6th grade when I started to go by my middle name and this dude who I knew in elementary knew me by my first name. So when I told him that I was going by my middle name he told me that my middle name wasn't my name and that I was going by a made up name.
First one that came to mind without thinking too hard. When I used to work at best buy a lady asked me, "Does a color printer also print black and white?"
For me, it's "What kind of caucasian are you?" Can't believe that people can't tell that I'm a mix of various western and eastern European nationalities.
I was in Biloxi for work last year and a guy runs up to me and asks "you ever watch that show Wayans Brothers? You look just like um!" Another day I was walking with a guy that has a hair discoloration obviously some sort of medical condition. This lady came up to him and says "THAT'S COOL! HOW YOU DO DAT?!?"