kie
where
kien
to where (direction or place)
kiam
when
kial
why
kiu
who, which
kiom (da/de)
how many, how much of
kiel
how, as, like
kio
what
respondas
answers, is answering
respondo
an answer
demandas
asks, is asking
demando
a question
kies
whose
kia
what kind of