Direction: In each of the following questions, four words have been given, out of which three are alike in some manner and the fourth one is different. Choose out the odd one.

A and B are brothers. E is the daughter of F. F is the wife of B. What is the relation of E to A? 

Mohini is taller than Nita but not shorter than Sarita. Sarita and Malini are of the same height. Mohini is shorter that Hema. Among them, who is the second tallest?

If HONESTY is written as ABCXZDQ, how can TONY be written in that code? 

If a certain code, RAMAYANA is written as PYKYWYLY, then how MAHABHARATA can be written in that code?

A, B, C, D, E, F, G and H are sitting around a circular table facing the centre but not necessarily in the same order. C is an immediate neighbour of both G and A. E sits second to left of C. Two people sit between E and H. B is an immediate neighbour of G. Only one person sits between B and F. Who amongst the following is an immediate neighbour of both B and F?

If PKROK code with 72962 and KRRPK coded with 29972 then how will be coded NJMLZ?

Given set
10.5, 15.0, 21.5