Is "What is each one of your names" correct way to say it?
"What is each one of your names?"
"What are each one of your names?"
"What is each one of your name?"
"What are your names?"
"What is each of your names?"
"What are each of your names?"
"What is each of your name?"

Which one is correct?
(There are many people, and I want to ask each one of their names.)

Question

Is "What is each one of your names" correct way to say it?
"What is each one of your names?"
"What are each one of your names?"
"What is each one of your name?"
"What are your names?"
"What is each of your names?"
"What are each of your names?"
"What is each of your name?"

Which one is correct?
(There are many people, and I want to ask each one of their names.)

Answer

"What are your names?" is the most common and natural way to ask more than one person their names. I would avoid using "state your names" since it sounds too formal and unnatural in a casual, social situation.

Answer

"What are your names" is a really good option! :)

Answer

I think "what is the name of each of you?"

Answer

Thanks, but what if I'm in an informal situation and just want to ask people around me their names in a casual way? which one is grammatically right?

Answer

(Each of you, what is your name -> wouldn't use that, because it sounds a bit impolite) 
What are your names 
Can each of you please state their name
Please state your names / Please introduce yourselves