Odd Man Out

All except Thalamus are hormone-secreting glands.

Except Chalk, all others are obtained from plants.

In all other pairs, the two numbers are consecutive multiples of the same number.

Except Berene, all others are cities, So, option (A) is odd man out.

Each of the numbers except 27, is a prime number.

The words in all other pairs are synonyms.

All except Rhea are kinds of fishes.

In all other pairs, the letters of the first elements are rearranged in the second element in the order : third, second, fourth, first.

In all the other groups, the sum of the first three numbers is equal to the fourth number.

In all the other pairs, one word is the antonym of the other.