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.

RPK, TSM, VVO, XYQ, ?

If 'due to you' is coded as 'ba da ca', 'he is due' as 'xe ba le' and 'is sue to' as 'ba xe ca', then 'you' = ?

BROWN : BNORW :: SOUND : ?

In the following question, from the given alternative words, select the word which cannot be formed using the letters of the given word.
Nightwalker

Two labourers L and M start at the same point. L walks 10 m South, then turns left and walks 25 m. In the meanwhile M walks 20 m West, then turns to his right and walks 15 m , then turns East and walks 45 m. Where is M with respect to L?

Samarth heading towards north turns right after walking 10m, he turns right again walks for 4 meters and then he turns left and walks 6 km. In which direction he is walking?

From the given alternatives, select the word which CANNOT be formed using the letters of the given word.

Ranking

From the given alternative words, select the word which cannot be formed using the letters of the given word:
ECCENTRICITY