<image>In the matrix below, the sum of the 5 numbers in the cross-shaped frame is 60. By shifting this frame vertically and horizontally within the matrix, the sum of the five numbers enclosed by the frame can be different each time.

(1) A total of ____ different sums can be obtained.
(2) If the sum of the 5 enclosed numbers is 195, then the largest number among them is ____.
(3) Is it possible to have a sum of 215 for the 5 enclosed numbers? Why?