Question words in Spanish are exactly what it sounds. Words to ask questions in Spanish. Questions like: what? where? when? how? who? why? etc.
These verbs are very common in Spanish. They reflect an action where the subject and the object are the same, I mean, things that one does to oneself. For example: when I brush my teeth or my hair, when I shower, when I dress up, when I put my make up on, when I wake up, when I go to bed etc. These are all actions that I do to myself.