Verbal Reasoning - Mental Ability Questions

In the following question, select the related word from the given alternatives.
Book : Pages : : Continent : ?

If EXPLAIN is coded as BUMIXFK, then how will GYM be coded as?

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

3/5, 1.4, 11/5, ? , 19/5, 4.6

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.
-4, ? , 1, 3.5, 6, 8.5

If P is the brother of the son of Q's son, how is P related to Q?

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

HI, MN, RS, ?

 In a certain code language, “PRANK” is written as “RUESQ”. How is “RATES” written in that code language?

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

2, 3, 7, 16, ?