In each of the following questions, four numbers are given out of which three are like in some manner while one is different. Choose the one which is different from the rest three?

In each of the following questions, four numbers are given out of which three are like in some manner while one is different. Choose the one which is different from the rest three?

In each of the following questions, four numbers are given out of which three are like in some manner while one is different. Choose the one which is different from the rest three?

11 : 1331 :: 9 : ?

25 : 175 :: 32 : ?  

525 : 25 :: 315 :  ?

25 : 625 : : 35 : ?

6 : 8 :: 3 : ?