WHICH NUMBER SHOULD BE IN THE RED SQUARE?

Our brains need workouts. Short puzzles and riddles are the perfect way to train your brain.

1.TEST 1

 

 

 

 

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2. TEST 2

 

 

 

 

 

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3.TEST 3

 

 

 

 

 

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4. TEST 4

 

 

 

 

 

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