Thanks for the Barron spelling. This quiz is for famous siblings. Some of the answers could have included lesser known siblings but I don't want to have obscure information in this quiz. For instance According to Midrashic tradition, Cain and Abel each had a twin sisters; Aclima and Awan. Though interesting this kind of obscure trivia is better suited for a religion quiz.
https://en.wikipedia.org/wiki/Cain_and_Abel