REASONING Alphabets series?? #shorts

What will come in place of the question mark(?) in the following alphabet series based on their positions in the English alphabet? DGH JMN ?VYZ

Complete the alphabetical series choosing the most appropriate option given below. U,O,ul?,E,A

How many pairs of letters are there in the word EXTREME according to the English alphabetical series (both in the forward and backward direction)?

The following groups of alphabets from a certain pattern with regard to their position in the English alphabetic series. Based upon the pattern which of the following five alternative shall replace the question mark? AD FC HK MJ ?

The following groups of alphabets from a certain pattern with regard to their position in the English alphabetic series. Based upon the pattern which of the following five alternative shall replace the question mark? XDH VGJ TJL RMN ?