When we learned how to spell out numbers, I had the weirdest problem where I thought they were spelled like '6ix' or '5ive' or '9ine' or '7even' etc. I couldn't see the error at all. I still think they look good that way.
A childhood belief about counting

others believed things like this
- I used to believe that numbers had gender, that the odd numbers were boys and even numbers were girls. — Evelyn
- I used to believe that the rapper Eminem's name was spelled M&M and anyone named Juan was spelled one.Anon
- I thought the name Phillip was actually spelled "Fill Up"— Natasha H
- I thought penis was spelled “Penus”, Like “Venus” but with a P.Anon
- I thought that singer/songwriter was spelled this way: sing-a-song-writer...Anon
- I thought Kaa's name from The Jungle Book was spelled "Car" and that he had a brother named Truck.Anon