かどうか => whether or not ~ N4
どこか => somewhere N5
Doubt
どんなに…だろう(か) => how…!; what…! N3
Emphasis on degree
はどうですか => how about; how is N5
どうにかする => find a way to N2
Conditions (sufficient conditions)
はどうですか => how about; how is N5
Doubt
どうにかなる => somehow manage do something about N2
Evaluate
たらどうですか => why don't you; how about ~ N4
Invite and advise
てはどうか => What about?/ … How do you feel about? N4
Suggestion
どうせ (のこと) だから => Because eventually have to ... N3
Invite and advise
どちらかというと => Overall, it can be said N2
Evaluate
どうにか => in some way or other; one way or another N2
Happens next