Mis?
What?
Mis see on
What is this?
Kes?
Who?
Kus?
Where?
Kelle?
Whose?
Kuidas?
How?
Kas?
turns the statement into a question
Ka
also, as well
Mul on kusimus
I have a question
Kas see on?
Is this
Kas need on
are these
Mis veel?
What else?
Mitu?
how many?
Kas sa oled
are (you)?
Kui
if
Kui kaua?
how long?
kui palju
how much?
kui vana?
how old?
kuidas?
How?
Kus te pärit olete?
Where are you (originally) from?
Kas te olete inglane?
Are you English?
Kust?
Where from?
Kui pikk?
how tall?
Mida?
What?