Verbal Reasoning - Mental Ability Questions

In the following question, by using which mathematical operators will the expression become correct?
15 _ 3 _ 4 _ 20

Six persons P, A, V, K, J and C are sitting in a row facing north. C is to the immediate left of V who is third to the right of P. J is to the immediate left of K and is at one of the end. Who is to the immediate left of A?

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

KlMnO, qRsTu, WxYzA, cDeFg, ?

Pointing to a boy in a photograph, Rani said "His mother's only daughter is my mother". How is Rani related to that boy?

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

X drives 30 km south, then turns right and drives 30km, then turns left and drives 20 km and then turns left and drives 30 km. How far is X from his/her initial position?

If "S" denotes "multiplied by", "V" denotes "subtracted from", "M" denotes "added to" and "L" denotes "divided by", then 36 L 9 S 8 V 7 M 5 = ?

If the triangle ABC and DEF follows the given equation, then these two triangles are similar by which of the following criterion?

ABDE = BCEF =ACDF