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

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

In the following question, select the odd number pair from the given alternatives.

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

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

Four clusters have been given out of which three are alike in some manner and one is different. Select the one that is different.

Option

Select the odd group of numbers. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g.13 – Operations on 13 such as adding /subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)

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