interr pron
 1) what, how, of what kind
    1a) (interrogative)
        1a1) what?
        1a2) of what kind
        1a3) what? (rhetorical)
        1a4) whatsoever, whatever, what
    1b) (adverb)
        1b1) how, how now
        1b2) why
        1b3) how! (exclamation)
    1c) (with prep)
        1c1) wherein?, whereby?, wherewith?, by what means?
        1c2) because of what?
        1c3) the like of what?
             1c3a) how much?, how many?, how often?
             1c3b) for how long?
        1c4) for what reason?, why?, to what purpose?
        1c5) until when?, how long?, upon what?, wherefore?

 indef pron
 2) anything, aught, what may