In the following question, select the number which can be placed at the sign of question mark ( ?) from the given alternatives .

Directions: In each of the following questions, four words have been given, out of which three are alike in some manner and the for one is different. Choose out the odd one. 

Select the letter-pair that can replace the question mark (?) in. the following series
BA, DC, FE, HG, ? , LK

Select the letter that will come next in the following series.
O, R, U, X, A, ___

If TREK = 8346 and FAMILY =209175 then REALITY will be 

A word is represented by only one set of numbers as given in any one of the alternatives. The sets of numbers given in the alternatives are represented by two classes of alphabets as in two matrices given below. The columns and rows of Matrix I are numbered from 0 to 4 and that of Matrix II are numbered from 5 to 9. A letter from these matrices can be represented first by its row and next by its column, e.g : ' F ' can be represented by 01 , 13 , 32 , etc . and ' N ' can be represented by 57, 69, 95 etc. Identify the set for the word PEN.

If in a dice it's two opposite surface addition is 7. Which is the right form of this dice shown below?

Statement:

If he is intelligent, he will pass the examination.

Assumptions:

I. To pass, he must be intelligent.