This morning, I received the following question to questions@scjfaq.org:
If A is a family consisting father A1 and sonA2 and B is a family consisting mother B1 and daughter B2. After one time A1 married to B2 and gave birth C again A2 married B1 and gave birth to D. What are the possible relationships between C and D?
What I can’t figure out is why I got this question. It has nothing to do with Judaism.
