"Gdzie jest masło?"

Translation: Where is the butter?

[derPolyglott98]

How would you say "cooking oil" in Polish? For example yes there is "Masło", but how would you say the Russian equivalent to "растительное масло"?

[mihxal]

"olej" or "oliwa"

[derPolyglott98]

Dziękuję!

[BRMKDapu]

Why is it "the butter" and not "a butter" or just "butter"?

[Jellei]

"butter" works, but you cannot say "a butter", as far as I know.

[Stewart156051]

Agree, "butter" sort of works, but "the butter" sounds more natural/fluent.

[eannaoc]

"A butter" wouldn't work for this context. You could possibly use such a phrase to mean 'a type of butter' eg. "Dairygold is a butter." But even so I think "Dairygold is a type of butter" sounds better.