1:

Find the odd man out.
1, 4, 9, 16, 23, 25, 36

Correct Answer : 23

Explanation:

Each of the numbers except 23, is a perfect square.


2:

Find the odd man out.
1, 4, 9, 16, 20, 36, 49

Correct Answer : 20

Explanation:

The pattern is 12, 22, 32, 42, 52, 62, 72. But, instead of 52, it is 20 which is to be turned out.


3: Find the odd man out.
2, 5, 10, 17, 26, 37, 50, 64
Correct Answer : 64

Explanation:

(1*1)+1 , (2*2)+1 , (3*3)+1 , (4*4)+1 , (5*5)+1 , (6*6)+1 , (7*7)+1 , (8*8)+1

But, 64 is out of pattern


4:

Find the odd man out.
10, 14, 16, 18, 21, 24, 26

Correct Answer : 21

Explanation:

Each of the numbers except 21 is an even number.


5:

Find the odd man out.
16, 25, 36, 72, 144, 196, 225

Correct Answer : 72

Explanation:

Each of the numbers except 72 is a perfect square.


6:
Find the odd man out.
331, 482, 551, 263, 383, 362, 284
Correct Answer : 383

Explanation:

In each number except 383, the product of the first and third digits is the middle one


7:

Find the odd man out.
835, 734, 642, 751, 853, 981, 532

Correct Answer : 751

Explanation:

In each number except 751, the difference between the third and first digit is the middle one.


8:

Find the odd man out.
41, 43, 47, 53, 61, 71, 73, 81

Correct Answer : 81

Explanation:

Each of the numbers except 81 is a prime number.


9:

Find the odd man out.
3, 5, 7, 12, 17, 19

Correct Answer : 12

Explanation:

Each of the numbers is a prime number except 12.


10:

Find the odd man out.
3, 5, 11, 14, 17, 21

Correct Answer : 14

Explanation:

Each of the numbers except 14 is an odd number.

The number '14' is the only EVEN number.


11:

Find the odd man out.
8, 27, 64, 100, 125, 216, 343

Correct Answer : 100

Explanation:

The pattern is 23, 33, 43, 53, 63, 73. But, 100 is not a perfect cube.


12:

Find the odd man out.
10, 25, 45, 54, 60, 75, 80

Correct Answer : 54

Explanation:

Each of the numbers except 54 is a multiple of 5.


13: Find the odd man out.
6, 9, 15, 21, 24, 28, 30
Correct Answer : 28

Explanation:

Each of the numbers except 28, is a multiple of 3.


14:

Find the odd man out.
396, 462, 572, 427, 671, 264

Correct Answer : 427

Explanation:

In each number except 427, the middle digit is the sum of the other two