The unit digit remains same, and the thousand place, hundredth place and tenth place changes and follow particular pattern except in 5686.

Correct Option: D

The unit digit remains same, and the thousand place, hundredth place and tenth place changes and follow particular pattern except in 5686.

All numbers are prime numbers except 15.

Correct Option: C

All numbers are prime numbers except 15.

All numbers are prime numbers but when we reverse the digits all except 23 remain prime numbers.

Correct Option: C

All numbers are prime numbers but when we reverse the digits all except 23 remain prime numbers.

All the numbers except 345 are one more than the cube of a certain number.

Correct Option: C

All the numbers except 345 are one more than the cube of a certain number.

131 is the odd one out as it is the only prime number.

Correct Option: C

131 is the odd one out as it is the only prime number.