"Saludos desde el otro extremo" means "Greetings from the other end" in Spanish. It is a friendly way of saying hello from a distant location.
Los saludos means: the greetings.
me quiere means I want lo quiere means he/she wants
desde means: from as well as since
Greetings, how are you? saludos, como estas?
"¿Qué quiere decir 'teacher'?" is "What does 'teacher' mean?" in English. "Quiere decir teacher' means 'It means teacher', probably in response to the question: 'Que quiere decir 'profesor/maestro' en ingles?' ('What does 'profesor/maestro' mean in English?')
Do you want it?
It mean he/she loves you
Greetings from Austria!
It means: "Hello Kitty"
Desde el celular means "from the cellular".
They are probably trying to say 'hopeful greetings'. Try writing it as 'saludos esperanza', it is a more grammatically correct way.