1.- In my country, in the past, the most common names were José, Antonio or Francisco for men and Carmen, Isabel o Pilar for women. Now are Leo, Guillermo for men and Lucía for women.
2.-My surname is not very common.
3.- My family name doesn't tell me anything about my family.
4.- My family name refers to Easter.In Spain many surnames refer to professions as Baquero o Tejedor.
5.-In the 80s of the twentieth century there were very common names like Jonathan, Sheila or Vanessa.
6.- It depends on the situation.
7.- Yes, in a formal conversation.
8.-Honey, heart or heaven