In the following letter sequence, how many n's are followed by m but not preceded by h ?
a  g  r  h  t  n  m  b  c  n  m  l  b  u  v  n  m  h  e  r  h
n  m  g  f  e  h  n  m  e  c  n  m  w  q  a  n  m  h  l  b

B. 5

H  D  Y  S  M  W  N  B  Q  P  O  C  R  T  B  L  Z  V  E  G  U  F Which letter has the same neighbours as in the alphabetical order although they have changed places ?

D. P

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 is the letter as far from the first letter of the alphabet given below as the letter C is from the letter midway between K and R in 'QUICKSILVER' ?

D. J

H  D  Y  S  M  W  N  B  Q  P  O  C  R  T  B  L  Z  V  E  G  U  F Which two neighbours in the given arrangement are farthest in the alphabetical order ?

B. D AND Y

In the following list of letters, how many O's are followed by Q's but not preceded by D's ?
D  O  Q  O  D  Q  O  D  O  D Q D O  Q  D  S  D  Q  P
O  Q  D  S  S  S  D  O  Q  O  Q  D  O  Q  D  D  D  O  Q

C. 2