'¿De que te ries?' means 'What are you laughing at?' or 'What's so funny?'
It means, "From when is this photo or [of] what?"
I rejoice/ am delighted that I'm free of you
"Que tal si pruebas un sandwich de queso" translates to "How about you try a cheese sandwich" in English. It suggests a recommendation or invitation for someone to taste a cheese sandwich.
Translation: everything that, i.e. Quiero saber todo lo que piensas de eso = I want to know everything that you think about that.
"de lo que" would vary depending on the context it is used in - but the direct translation would be "than".
Of which or of what.
"De que" would be "Of what" in English.
What are you talking about?
But from what city
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?"