"What is your name?" is not the Spanish way of asking for that information. In Spanish, the common form of this question is "How do you call yourself?" or "How are you called?" You say it, "¿Cómo se llama?"
You would say "su nombre"
If there was an accent over the 'i' - say-EEN If not, 'sane'. Sein is not a Spanish name, though.
The Name Alvaro means Guardian. To say the word Guardian in Spanish, you would say: Protector
"Ridge" if it is used a someone's name would be "Ridge" in Spanish. Using Spanish pronunciation, this would be "REED-heh".
The closest name to Edwin in Spanish would be Eduardo.
Sidny is a name. So in Spanish it would be the same "Sidny".
Karina is a person's name, and would remain the same in Spanish.
Is it a name? It would most probably be pronounced 'mahSAWchah' in Spanish
Nike is the name of a company, and it would not change in Spanish. For pronunciation, it would be NEE-keh
If the name is not IN Spanish, then it has no meaning in Spanish. If you want to know how to say that name in Spanish, you would say it the same as you say it in English, since it has no translation in Spanish. Many names have no translation in languages other than the one they are in originally.
Brandon is a name. You would just leave it as is. There is no Spanish equivalent for Brandon.
How do you say ophra in spanish? That is how you say "ophra" in spanish.