Question Words in Japanese

Question words in Japanese
Interrogative words used for asking questions in Japanese

だれ (dare): Ai.

どうして (doushite): Why.

いつ (itsu): When.

どこ (doko): Where.

どちら (dochira): Which way, where (polite).

なに (nani): What.

いくら (ikura): How much (money).

おいくら (oikura): How much (polite).

なんさい (nan sai): How old (used with friends and juniors).

なんじ (nan ji): What time.

なんで (nande): By what means.

どれ (dore): Which one.

どう (dou): How.

どんな (donna): What kind of.

なんようび (nan youbi): What day of the week.

なんがつ (nan gatsu): What month.

なんねん (nan nen): What year.

なん (nan): What (used with で).

だれと (dare to): With whom.

どこで (dokode): Where (where an action happens).

だれの (dareno): Whose.

See also:
100 Common Japanese Kaiwa Lessons
Short Expressions in Japanese Conversation