what ( noun )
무엇 / 뭐
where ( place )
어디
when ( time / date )
언제
who ( person )
누구 / 누가
why ( reason )
왜
how ( method / adverb of degree/ by means of what )
어떻게
how much ( noun price / value )
얼마
how long ( duration)
얼마나
how many
몆이나
what ( quantities / counting units )
몇
which kind ( speaker has no idea at all )
무슨
which one / what kind
어떤
which
어느