Hello, I haven't found many languages where the word "no" can be used for affirmative replies meaning "Of course" or something like that. If you speak Italian you might know the idiom "Come no" which actually means of course, surely, certainly. There's a similar idiom in Czech, too. I wonder if other Slavic languages use a similar idiom, too. Here's a simple concrete example in Czech: - Chceš to vidět? [do you want to see it] - Aby ne! [Of course] Thanks.