Two answers:
1) If the person is being formal then they are politely asking, "How old are you"
2) The person could be refering to a He/She/It instead and asking "How old is he/she/it"
It reads, "How many years do you have", otherwise asking how old are you.
It means 'How old are you?'
Cuantos anos tienes?
It means "How old are you?"
"Cuantos anos tienes?" literally means "How many years do you have?" in Spanish. Basically, they are asking "How old are you?" To answer this, you would say "Tengo (how ever many years old you are) anos." For example, if you are seven. You would say, "Tengo siete anos." This literally means "I have seven years," but basically means "I am seven years old."
How old is your uncle? ('tio' could also mean 'bloke, fellow')
"¿Cuántos años tienes?" would be interpreted as "How old are you?". Literally it is "How many years have you?"
To answer, Cuantos anos tienes?( How old are you?) You say: Tengo __ anos. Filling in the blank with your age.
Cuantos anos tienes translates to "how old are you?" in english
Informal: cuantos anos tienes? Formal: cuantos anos tiene Vd (=usted)?
Informal: cuantos anos tienes? Formal: cuantos anos tiene Vd (=usted)?
Aaahh!! Q me cuentas cuanto tienes de haberte ido
It means, "So then, you; how old are you?"
It means how old are you? The literal translation is how many years do you have.
cuantos anos tienes
It means "How old are you?"
Cuantos anos tienes?
['kwan̪tos 'aɲos 'tjenes] with the IPA
This means, "Very well; how old are you?"