¿Cuantos anos tienes? = How many anuses do you have
¿Cuantos años tienes? = How old are you? (How many years you you have?)
Tienes means do you have
Teneis means do you all (my friends) have
there is no Spanish word "tieneis"
The n and ñ are not interchangeable letters in Spanish. If one cannot find the ñ when typing an informal note or text, it is always best to use the ~ such as "an~os" or add a y like "anyos" to make sure one doesn't make an unfortunate faux pas as the one above. When typing our a formal letter or document you should find the correct character.
On a Windows computer the ñ is made by pressing and holding the ALT key while entering the number 164 on the number pad (not the numbers above the keyboard) then letting go of the ALT key.
On a Mac computer press and hold "ALT" then press the N key. Let go the ALT key and press N again.
"I am nine years old, and you?"
Tengo [insert age] años. ¿En qué más puedo ayudarte?
I have of you.
I don't have your mail.
"Tu necesitar tu mover tu anos" in Spanish translates to "You need to move your years" in English. This phrase does not make sense in either language, as it appears to be a misunderstanding or incorrect translation.
there are two sentences here, tambien lo hacen = they also do it tengo tu corazon = i have your heart
if you meant to say "tu tienes mi corazon" it means you have my heart if you meant "yo tengo tu corazon" it means I have your heart "tu tengo mi corazon" is simply not conjugated correctly so it says tu=you tengo= i have mi= my corazon= heart you see? you i have my heart... does not quite make sense. so probably you are looking for one of the phrases i listed above.
Porque Tengo Tu Amor was created in 1984.
It means how old are you? The literal translation is how many years do you have.
"How old is your grandma"
That looks a bit like Spanish, but it's not correct Spanish. Two similar phrases are: Tú tienes - you have Te tengo - I have 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."