Test: Odd Man Out- 1

3, 5, 9 and 7 are odd numbers, but not 4.

37, 47, 67 and 17 are prime numbers but not 27.

16, 36, 64 and 4 are perfect squares but not 28.

41, 43, 47 and 53 are prime numbers, but not 57.

36 = 6², 49 = 7², 64 = 8², 81 = 9² and 100 = 10².

36, 64, 81 and 100 are squares of composite numbers, but 49 is a square of prime number 7.

8 = 2³, 27 = 3³, 64 = 4³, 125 = 5³ and 343 = 7³.

8, 27, 125 and 343 are cubes of prime numbers but not 64.

343 = 7³, 121 = 11², 1331 = 11³, 2197 = 13³ and 125 = 5³.

343, 1331, 2197 and 125 are perfect cubes, but not 121.

48, 75, 84 and 57 are divisible by 3 but not 35.

42624, 37573, 74347 and 93339 are palindromes but not 84284.

27, 36, 72 and 45 are divisible by 9, but not 30.

Except 4242, all other numbers are divisible by 11.

20 = 4² + 4, 42 = 6² + 6, 58 = 7² + 9, 72 = 8² + 8 and 90 = 9² + 9.

20, 42, 72 and 90 can be expressed in n² + n form but not 58.

30 = 3³ + 3, 630 = 5⁴ + 5, 10 = 2³ + 2, 520 = 8³ + 8 and 130 = 5³ + 5.

30, 10, 130 and 520 can be expressed as n³ + n but not 630.

The sum of the digits in 508, 328, 706 and 148 is 13, but not in 608.

Except in 862, in all other numbers sum of first two digits is same as the last digit.

525 => 5 5²,

39 => 3 3²,

24 => 2 2²,

636 => 6 6². The above pattern is not followed in 426.

11 = 1 1³, 28 = 2 2³, 327 = 3 3³, 416 = 4 4² and 5125 = 5 5³

Except 416, other numbers follow similar pattern.

Except 132, other numbers are odd numbers.

Except 110, other numbers are divisible by 4.

A, E, I and O are vowels, while R is a consonant.