how many people / (何人も) many people / (何人か) several people

which nationality

what kind of person

(law) anybody

(adverbial particle, dismissive, derogatory) emphasizes disgust, contempt, or otherwise negative feelings of the speaker: whatever

whatchamacallit, X

What? What did you say?

what number, how many (used with a counter) / (used with も) many (used with a counter)

nothing

what is this?