'Su' means 'his/her/your', with no sense in the present case.
Is it a name. If so, it means 'Su is gay/homosexual'.
Cuál es su nacionalidad = What is your nationality.
This isn't the most logically correct question, and it literally translates to: How es your hair.
What is your personality like?
"Cual es su apodo" means "What is your nickname?" in English. It is a question asking for someone's informal or alternative name.
what time is your house
Cuál es su nacionalidad = What is your nationality.
His/her/their passion is.
Su Nina = his baby girl
This isn't the most logically correct question, and it literally translates to: How es your hair.
What is your personality like?
Your hair is very pretty.
"Cual es su apodo" means "What is your nickname?" in English. It is a question asking for someone's informal or alternative name.
what time is your house
She is not here now. This is your mother.
Is your profile of employment really complete
That means "How is his/her sister" or "How is your sister" if you are talking to an elder (which would be the formal version).
"Juan es su nombre" means "Juan is his name" in Spanish.