Which one will replace the question mark?

and (16)² - (7)² = 207

Therefore (25)² - (21)² = 184.

(8)² = 64

(5)² = 25

(1)² = 1.

and (4 x 4) + (5 x 7) = 51

Therefore, (3 x 4) + (5 x 5) = 37.

(6 x 10) % 5 = 12

(4 x 8) % 2 = 16.

and (6 x 7 x 5)/10 = 21

Therefore (4 x 8 x 10)/10 = 32.

(789 - 543) = 246

(863 - 241) = 622.

(5 + 4) x 12 = 108.

and (3)² + (4)² + (6)² + (2)² = 65 x 10 = 650

Similarly (0)² + (1)² + (2)² + (8)² = 69 x 10 = 690.

and (3)² + (9)² = 90

Therefore (1)² + (5)² = 26.

and (4 x 9) = 36 and (2 x 9) = 18

Therefore (9 x 6) = 54 and (4 x 6) = 24.