Number series puzzle


There are five number series puzzles on the picture. Each series continues with some number (replace the question mark with your number).
created by brainfans
  

 



Brain teaser - Number And Math Puzzle - Number series puzzle - There are five number series puzzles on the picture. Each series continues with some number (replace the question mark with your number).




35 liked this
   
How many people solved this? 80 solved this


There is no hint

10 (+3/-2)
22 (-2/-4)
25 (-1/+2)
14 (+0/-13)
15 (21/+2)