∵ 272 = 2 + 7 + 2 = 11
210 = 2 + 1 + 0 = 3
240 = 2 + 4 + 0 = 6
304 = 3 + 0 + 4 = 7

The sum of digit of all number except 240 is a prime number where as sum of number 240 digit is a non-prime. Hence, it is different from all others.

Correct Option: C

∵ 272 = 2 + 7 + 2 = 11
210 = 2 + 1 + 0 = 3
240 = 2 + 4 + 0 = 6
304 = 3 + 0 + 4 = 7

The sum of digit of all number except 240 is a prime number where as sum of number 240 digit is a non-prime. Hence, it is different from all others.

Each of the numbers except 380, is either one less or one more than the square of a certain number.

Correct Option: D

Each of the numbers except 380, is either one less or one more than the square of a certain number.

Except 22 all are in the from 11² x 1, 11² x 2, 11² x 3 etc.

Correct Option: A

Except 22 all are in the from 11² x 1, 11² x 2, 11² x 3 etc.

Only 119 has different factors, 7 and 17 and no factors are repeated.

Correct Option: A

Only 119 has different factors, 7 and 17 and no factors are repeated.

Except 56 all can be expressed as power of 2.

Correct Option: C

Except 56 all can be expressed as power of 2.