Verbal Reasoning - Mental Ability Questions

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

D, G, K, N, R, ?, ?, B, F

A series is given, with one word missing. Choose the correct alternative from the given ones that will complete the series.
rupees, arena, pursue, spare, separate, ?

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
RS, ZA, HI, ?

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

11, 121, 1331, 14641, ?

A man travels 10 km towards west, then he takes a turn towards north-­east and travels 20 km in the direction. He again takes a turn towards south-­east and covers 5 km. Taking starting point as the origin, in which direction is he now?

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

P_P_RPQ_S_Q_ST

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

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