Which, what kind, whose: gendered question words

Three Bulgarian question words agree with their noun in gender and number, just like adjectives. The forms always go masculine, feminine, neuter, plural:

• кой, коя, кое, кои: who, which (Коя е твоята кола? Which is your car?)
• какъв, каква, какво, какви: what kind of, what ... like (Каква храна обичаш? What kind of food do you like?)
• чий, чия, чие, чии: whose (Чие е това колело? Whose bike is this?)

Look at the noun: a final consonant usually means masculine, -а/-я feminine, -о/-е neuter, and most plurals end in -и. With чий the form follows the thing owned, not the owner: Чия е тази чаша? (Whose cup is this?) Asking who a woman is also takes the feminine form: Коя е новата учителка? (Who is the new teacher?)