Go to the site version for smartphones.
14. What figure should replace the question mark?
  4 7 5 33
3 9 7 34
5 6 2 ?
 

Explanation:
Column 4 = (Column 1 × Column 2 + Column 3). 33 = 4 × 7 + 5; 34 = 3 × 9 + 7; 32 = 5 × 6 + 2.