cómo son tus amigos/as means how are your friends
The answer means physically (tall) or in terms of personality (funny), not in terms of health. (That would use the verb estar instead.)
It means "what are the names of your friends?"
"¿Quiénes son tus amigos?" means "Who are your friends?" in Spanish. It is a question asking you to identify or list your friends.
This is Spanish for"Who are your friends (feminine) or friends (masculine)?"
"Como estan tus padres" means "how are your parents" in English.
"¿Cómo están tus padres?" translates to "How are your parents?"
Como son tus padres
It means "what are the names of your friends?"
"¿Quiénes son tus amigos?" means "Who are your friends?" in Spanish. It is a question asking you to identify or list your friends.
¿De dónde son tus amigos?
This is Spanish for"Who are your friends (feminine) or friends (masculine)?"
"what mood will your friends be in tomorrow?"
how are the girls -- How are they (all boys or a mixture of girls and boys)?
What are your cousins like? literally, "how are your cousins."
Tus ojos brillan como el sol. "You eyes shine like the sun." Or "Tus ojos son como la luz del sol."
Quienes son tus Amigos (male) / Amigas (female) (If gender is not known go with male)
"Tu amigo y you somos", if you want the present tense. You can find a complete list of verb tenses at drae.rae.es.
Tus ojos y cara son hermosas.