Interrogatives are normally used to ask questions. Sometimes they may refer to a whole sentence or situation.

English Urdu Transliteration
how/of what kind? کَیسا، کَیسی، کَیسے، کس ترح kaisā, kaisī, kaise, kis tarah?
how much/many? کتنا، کتنی، کتنے kitnā, kitnī, kitne?
what? (also used at the beginning of yes/no questions) کیا kyā?
when? کب، کس وقت kab, kis waqt?
where? کہاں، کدھر kahān, kidhar?
who? کَون kaun?
which? کَون سا kaunsa?
why? کیوں kyūn?