Three of the following four word-pairs are alike in a certain way and one is different. Pick the odd one out.

Three of the following four numbers are alike in a certain way and one is different. Pick the number that is different from the rest.

Three of the following four letter-clusters are alike in a certain way and one is different. Pick the odd one out.

Find the odd letters from the given alternatives.

Find the  odd letters from the given alternatives.

Choose the odd numeral pair/group in each of the following questions:

Choose the odd numeral pair/group in each of the following questions:

Which among the following is different from other three?