I was surprised to see a Brazilian website ask its readers “Qual é a única palavra em português que tem plural no meio?”, because it’s a word we students usually learn very early on, so wouldn’t it be blindingly obvious to a native speaker? Well, no apparently, or at least whoever prompted an AI to write this thing didn’t think so.
For those who don’t know, or can’t remember, I’ll stick the answer under this picture 👇

Ans Qualquer (pl Quaisquer) Original article here.