Explanation:

- Statement A: The average of 11 numbers is 63.

- This provides the total sum of the numbers, but doesn't help find the middle number specifically.

- Statement B: The average of the first six numbers is 60, and that of the last six numbers is 65.

- This gives specific insights into the first six and last six numbers, which overlap at the middle number, but alone, it doesn't pinpoint the exact middle value.

- Option 2 is correct. ??

- Combining both statements: A+B provides enough information. The overlap in B gives the middle number when matched with the total from A.