Three of the following letter-clusters are alike in some manner and hence form a group. Which letter-cluster does not belong to that group?

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)

Option

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

Options:

Select the word-pair that best represents a similar relationship to the one expressed in the pair of words given below. (The words must be considered as meaningful English words and must not be related to each other based on the number of letters/number of consonants / vowels in the word.)
 Sparrows : Tree

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

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

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.