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

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

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

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

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

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

Option

Choose the related word/letters/number from the given alternatives.
 AF : BE : : ? : DH

Four number have been given out of which three are alike in some manner, while one is different. Choose the odd one.