Verbal Reasoning - Mental Ability Questions

If in a certain code, GREEN is written as ITGGP, then how will OINK be written as in the same code?

Select the related word/letters/number from the given alternatives.
AEG: GKM :: MQS : ?

If in a certain language, STRING is coded as TSIRGN, how is RANDOM coded in that code?

Rohan, after walking 5 km towards west, turns left and then walks for 12 km more. Find the shortest distance between his initial and final position.

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
ZYX, VUT, QPO, MLK, HGF, ?

In a certain code language, '-' represents '+', '+' represents 'x', 'x' represents '÷' and '÷' represents '-'. Find out the answer to the following question.

9 - 18 + 35 x 10 ÷ 30 = ?

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

Pension, Aptitude, Captain, Tropical, Survive, ?

In the following question, select the related word pair from the given alternatives.
Heart : Organ : : ? : ?