4
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enter image description here

Find the missing number in this grid. I am unable to find any pattern.

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6
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It is

-19

The above number is exactly in the middle of the 2 bottom numbers

So the difference between 9 and -5 is 14, just subtract 14 from -5

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    $\begingroup$ In that case it should be -19. $\endgroup$ – Member Dec 21 '15 at 9:45
  • $\begingroup$ @Wa Kai: That would be true if the question mark was on top of 9 and -5, but it's not. $\endgroup$ – Deusovi Dec 21 '15 at 9:46
  • $\begingroup$ Guys you are right. Corrected it. $\endgroup$ – Wa Kai Dec 21 '15 at 9:47
  • $\begingroup$ No, look every number is average of two numbers below it, so -5 is average of 9 and that question mark. $\endgroup$ – Member Dec 21 '15 at 9:47
2
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Answer is

-19.

Because

Every number is mean of two digits exactly below it.

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  • $\begingroup$ Welcome to the site, i edited your post with spoiler tags, it's common practice to hide the answers from those people that want to have a crack at the puzzles themselves. $\endgroup$ – DrunkWolf Dec 22 '15 at 17:59
-1
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answer is -19 because above number is the half of the sum of two numbers in the bottom row

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