is there some similar word to "butelka"?
Nope. You can use flaška (from German Flasche, obviously), but it's very colloquial.
Edit: I've just realised, there's butelka/butylka but no one uses that one. (Maybe in Moravia they do, but not in Bohemia).
It is from Russian. Бутылка.
is there some reason the clauses cant be reversed?
Efficiency of maintaining Duolingo courses.