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27. Which letter should replace the question mark?
  IQ test. Free iq test online # 1 with answers and solutions. Question # 27. Which letter should replace the question mark?
 

Explanation:
Column 4 = ((Column 1 - Column 2) × Column 3) + 2. In terms of the alphabetic order of letters. (W - S) × B + 2 = J; (T - Q) × E + 2 = Q; (Z - X) × H + 2 = R; (R - M) × D + 2 = V.