The following question is based on the following alphabet series.
A  B  C  D  E  F  G  H  I  J  K  L  M
N  O  P  Q  R  S  T  U  V  W  X  Y  Z

Which letter is sixteenth to the right of the letter which is fourth to the left of I ?

A. S
B. T
C. U
D. V
E. Y
Answer: C . U


Clearly, the fourth letter to the left of I is E. The sixteenth letter to the right of E is U.