yo le doy las manzanas a Juan para su amiga
I'm not very good on explaining this but I'll give you an example or more than one.
Antonio y yo nos besamos.
Antonio and I kissed each other.
¿Os conocéis?
Do you all know each other?
Juan y María se casaron.
Juan and Maria got married (to each other).
Los estudiantes se ayudan.
The students help each other.
I hope it helped
Hello, the sentence means "How old are you?" and of course the answer would be "I'm 14" that in Spanish is "Tengo catorce anos"
Expresando tus mismos sentimientos