Of which or of what.
"De que" would be "Of what" in English.
how was your weekend?
It means, "What is there [that's] good?"
¿Que tipo de persona eres? means: What kind of person are you?
The Spanish word Que? means What? in English
"De que" would be "Of what" in English.
What are you talking about?
But from what city
'¿De que te ries?' means 'What are you laughing at?' or 'What's so funny?'
how was your weekend?
What kind of exercises do you do?
It means, "What is there [that's] good?"
de que: from what
What do you do on the weekends?
What do you//does he/she do after going home
Its referring to material. "Of what is the jacket made?"
It means, "From when is this photo or [of] what?"