Verbal Reasoning - Mental Ability Questions

Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

xy_kx_zk_yzk xyz_ _

Find out the odd word/letters/number/number pair from the given alternatives.

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.
6, 18, 54, ? , 486, 1458

If IRON is written as GOKI, then KNIFE may be written as

How is Sameer related to Akbar if Sameer introduced Akbar as his maternal grandmother's only son's son?

Select the related word/letters/numbers from the given alternatives: DBCE : QOPR :: JLKI : ?

In a row of 74 girls, Shweta is 27th from left end. Palak is 7th to the right of Shweta. What is Palak's position from the right end of the row?

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

AB, BC, CD, DE, EF ?