Based on the position in the English alphabetical order, three of the following letter clusters are alike in some manner and one is different. Select the odd letter-cluster.

In each of the following questions, certain pairs of words are given, out of which the words in all pairs except one, bear a certain common relationship. Choose the pair in which the words are differently related?

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

The second number in the given number-pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) are followed in all the number-pairs EXCEPT one. Find that odd number-pair.

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.

Study the given pattern carefully and select the number that can replace the question mark (?) in it.
 First row: 3, 2, 30
 Second row: 7, 5, 175
 Third row: 4, 6, ?
 (NOTE: Operations should be performed on the whole numbers, without breaking down the number into its constituent digits. For example, 13 – Operations on 13 such as adding / deleting / 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.)

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

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