Which type of soil has the lowest particle

Find the odd one out from the following options. 

Select the option in which the numbers are related in the same way as are the numbers of the following sets.

(13, 11, 52)

(9, 27, 76)  

Find out the odd letter/letters pair from the given alternatives.

Select the odd letters from the given alternatives?

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

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

Odd one out

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

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