School taught me that there are exclusively four Romance languages. There's actually 23-35 or so, depending on how you count.
School taught me there's exclusively five senses, but Wikipedia lists 13 or so.
Why should I be surprised when "there are exclusively two genders" turns out to be false as well?
@Mycroft Up there with the answer to "how many native American tribes". Like, even going by just currently, about the best you're going to get to easily is the number of tribes currently recognized by the US, Mexico or Canada and that doesn't take into account tribes that aren't recognized and undercounts tribes that have merged but were historically separate.
@Mycroft I also love how everyone "forgets" Romanian :x It even has "Roman" in its name...
@Mycroft Ok, I'll bite. What are the other 7 senses?