53 is the country code to get to Cuba and 7 is the Havana code.
I want you to want me
537 millilitres/1 litre = 537 mL/1000 mL = 0.537
es para mi = " is for me"
Para Bellum
Para can have several meanings. The verb "para" can mean to stop when issued as a command. Most often, however, para is a preposition. It can mean "by": para mañana means "by tomorrow." It can mean "for": El libro es para tí means "The book's for you." It can mean in order to: Fuí para ver La Casa Blanca means "I went (in order) to see the White House."
The Spanish phrases 'para qué' and 'por qué' both can mean why.
"Paz para" means "peace".
537-178 = 359
537 is composite.
for
"Siempre para tu" needs an ending. For example, "siempre para tu libro" is "always for your book". Siempre para ti is "always for you". Which one do you mean? take your pick.