Question: Which number is the odd one out in the series: 11, 22, 33, 44, 55, 66, 77, 88, 99, 110?

Options:

1. 33
2. 44
3. 55
4. 110

Correct Answer: 110

Solution:

All numbers are multiples of 11 except 110, which is not a multiple of 11 in this context.