Four number-pairs are given out of which three are alike in a certain way and one is different. Select the number-pair that is different from the rest.

16 : 64 34 : 289 24 : 142 14 : 49

24 : 142

The logic followed here is: second number × 2 : (second number) 2 16 : 64 8 × 2 : (8) 2 16 : 64   34 : 289 17 × 2 : (17) 2 34 : 289   24 : 142 12 × 2 : (12) 2 24 : 144 but 142 (odd)   14 : 49 7 × 2 : (7) 2 14 : 49