"What do you like?"

Translation: Co lubisz?

[sawwhet]

Lubisz is you singular and lubicie is plural. Just like ty is singular and wy is plural.

[palgonista]

co lubicie? czy tu nie powinna byc liczba pojedyńcza? czyli : co lubisz?

[immery]

Did it not accept "co lubisz?" both are correct.

As you know English does not distinguish between ty and wy- both are you.

[Helena834099]

Yes that is confusing you and you

[MarcelScrivner]

Could you also say "Czy co lubisz/cie?"

[Jellei]

No. That would be more or less equivalent to "Do you what you like", or something like that.

[FyodorS.]

Co Panstwo lubi? - Isn't it correct?

[Jellei]

That would sound like "What does the country/state like?", because "państwo" used this way means "country/state". (not a 'state' as in one of the United States, mind you).

"państwo" as Formal You is plural, "Co państwo lubią?" (or "Co Państwo lubią? if you actually write directly to them, and not just in a Duolingo comment)