1: Their last name?

2: Their date of birth

3: How is their sister called?

4: How is their brother called?

5: Which is older?

6: Which is taller?

7: Which is their common name?

8: Live in:

9: Which social network did they celebrate?

10: What is the Lisa favorite singer?

11: Lisa has learned to play a guitar at age seven

12: Their best friend is:

13: How tall is Lena and how much is Lisa?

14: What are their eyes colour?