Verbal Reasoning - Mental Ability Questions

In a certain code language, “LUNGS” is written as “OWQIV”. How is “HEART” written in that code language?

Select the related word/letters/number from the given alternatives.
Farmer : Plough:: Painter: ?

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

Power : Watt : : ? : ?

From the given alternative words, select the word which cannot be formed using the letters of the given word. SPECULATION

The  following  questions  consist  of two  words  that  have  a  certain  relationship  to each   other,   followed   by   four   alternatives. Select  the  best  alternative  that  has  same relationship as the original pair of words

Stare : Glance

In the following question, select the related word from the given alternatives.
Calendar : Date : : Index : ?

If SELFIE = LXEYBX, then PHYSICS = ____

Which word comes first in the dictionary?