�qu�?
what?
�por qu�?
why?
�c�mo?
how?
�cu�ndo?
when?
�ad�nde?
to where?
�d�nde?
where?
�de d�nde?
from where?
�cu�nto/a?
how much?
�cu�ntos/as?
how many?
�cu�l?
which (one)?
�cu�les?
which (ones)?
�qui�n?
who?
�qui�nes?
who (pl.)?