skip to main content


Puzzle ZKNU 


Please consider supporting BrainBashers to help me keep it advert free. [hide]
??

Which letter is missing from this sequence:

b · c · e · g · k · q · s · w

workings hint hide answer print

Answer
M.

Reasoning
These are letters that occupy prime number positions in the alphabet:
b =  2
c =  3
e =  5
g =  7
k = 11
m = 13 *
q = 17
s = 19
w = 23