In each of the following questions, a sequence of number or letters that follow a definite pattern is given. Each question has a blank space. This has to be filled by the correct answer from the four given options to complete the sequence without breaking the pattern.
DRUM : IWZR :: _________ : GQNSI
ARC : DOF : ALI : ____________
Tiger : Goat :: _____________: Herbivore
I : 18 :: __________ : 13
12 : 1728 :: ______________ : 2744
Pick up the odd thing out in the following options and mark its number as your answer for the question: