Classification Choose Odd Word - Base Level 2

All except Nose are parts which exist in pairs in human body.

All except Puppy are names of animals, while puppy is a young one of dog.

Mercury is the only planet in the group which does not have any moon.

All except Seed are parts of a flower.

All except Rhetoric are terms associated with poetry.

In all other groups, the first and second letters occupy the same positions from the beginning and end of the alphabet, and so do the third and fourth letters.