A can do a piece of work in 15 days while B can do it

Select the option that is related to the third number in the same way as the second number is related to the first number.

46: 146 :: 65:?

Select the option in which the numbers are not related in the same way as are the number of the following set.

(34, 40, 52)

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

NIL: SNQ :: GAP: ?

Choose another pair of words with the same relationship as the one given below.

Backstroke: ? : :  Bouncer: Cricket

Select the option in which the numbers are related in the same way as are the numbers in the given set.

(6, 19, 79)

Find out the alternative which will replace the question mark?

Vaccination: Disease ∷ Maintenance:?

Select the related number from the given alternatives:

13 : ? :: 12 : 1729

Choose the word which is different from the rest