Verbal Reasoning - Mental Ability Questions

In the following question, select the related number from the given alternatives.
48 : 63 : : 80 : ?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.

IM, JO, KQ, LS, ?

A series is given, with one word missing. Choose the correct alternative from the given ones that will complete the series.

yes, rain, alive, subtle, ?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

3, 9, 4, 16, 5, ?

Find the missing number?

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

P_QR_QQ_PQ_R

In the following question, select the odd word pair from the given alternatives.

The ratio of the present ages of Shreya and her husband is 8 : 9. 9 years from now, ages of her husband and her son will be in the ratio of 9 : 4. If the present age of Shreya is 56 years, then what will be her son’s present age (in years)?