Find the missing term : HEJ, JGL, LIN, NKP, ?

Gap of letters between the two consecutive terms is increased by +1. So, the missing would be L. 

The given sequence consists of two series:  I A, D, G, J in which each letter is moved three steps forward to obtain the next term  II Y, W, U, ? in...

First letter of each group differs by 5 letters in the backward direction. Second letter of each group differs by 2 letters in the forward direction. Third letter of each...

The first letter of subsequent groups has a difference of 4, 5 and 6 places respectively, whereas the second letter of the subsequent groups has a difference of 5, 6...

The first number in the terms follow the sequence +12, +22, +32, +42, ........ The second letter of each group differs by 3 letters in the forward direction. Third letter...

Series is aaabb/aaabb/aaabb. So, pattern aaabb is repeated.  Ans. (C) aabab 

The series is b a b c / b a b c / b a b c  So, pattern babc is repeated  Ans. (D) bacc 

Series is aabcd/abbcd/abccd/abcdd  Ans. (C) adbbad 

(A) Series is bccb / bccb. So, pattern bccb is repeated  Ans. (A) cbcb 

The correct option is (D) 96.