There are three interrogative pronouns
in Finnish:
In addition, mikä is used for three or more objects when offering a choice of them, while kumpi is used for two.Kuka heistä on kaiken komein? Which one of them (people) is the most handsome? Mikä niistä on kaiken komein? Which one of those (animals/things) is the most handsome?
Kumpi niistä kirjoista meidän pitäisi lukea? Which one of those (two) books do we have to read? Mikä niistä kirjoista meidän pitäisi lukea? Which one of those (three or more) books do we have to read?