Verbal Reasoning - Mental Ability Questions

If the first and second letters in the word DEPRESSION' were interchanged, also the third and the fourth letters, the fifth and the sixth letters and so on, which of the following would be the seventh letter from the right ?

Select the related letters from the given alternatives.

FDH : LJN :: RPT : ?

Select the related word/letters/number from the given alternatives.

76 : 42 : : 46 : ?

Select the related word/letters/number from the given alternatives.

Intelligent : Dumb :: Inflate: ?

Select the related word/letters/number from the given alternatives.

India : Tiger : : Nepal : ?

Select the related word/letters/number from the given alternatives.

12 : 72 : : 13 : ?

Select the related word/letters/number from the given alternatives.

Iraq : Dinar :: Korea: ?

In the following question, select the missing number from the given series.

9, 10, 13, 22, 49, ?