12, 91, 172, 249, 328,

Find out the alternative which will replace the question mark?

Vaccination: Disease ∷ Maintenance:?

Prince : 06 :: Mother : ?

If 42 @ 21 = 18' and 35 @ 27 = 18', then 46 @ 32 = ?'. What will come in place of question mark?

If 74 × 35 = 3, 35 × 13 = 4, 54 × 42 = 3, then 78 × 44 =? 

From among the given alternatives select the one in which the set of numbers is most likely the set of numbers given in the question.

Select the related word/letters/number from the given alternatives.

11 : 1342 : : 14 : ?

Select the option that is related to the third letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster.