Who is Socrates? - вопрос к подлежащему.
What did the fellow want to say Socrates? - специальный вопрос.
Socrates stopped the fellow, didn't he? - разделительный вопрос.
Did Socrates want to give the fellow a little triple test? - общий вопрос.
Did the fellow want to tell Socrates about his friend or his relatives? - альтернативный вопрос.