Odd Man Out Questions

In the following question, select the odd letter group from the given alternatives.

Find the odd one out.

In the following question, select the odd letters from the given alternatives.

In the following question, select the odd letters from the given alternatives.

Find the odd word/letter/number pair from the given alternatives

Find out the odd word/letters/number pair from the given alternatives

Select the odd word/letters/number/number pair from the given alternatives.

Findout the odd word/letters/number/number pair from the given alternatives.
7 : 50 : : 9 : ?