= Where do you (sing.) live?
= At what time do you eat dinner?
= Who lives here?
= Who is organizing the party?
= Do you (sing.) speak English?
= Do you (pl) speak English?
= Do they (m) live here?
= Do you (pl) live here?
= Where are we having dinner?
= Where is she having dinner?
= Where is he?
= Where is she?