IQ Test Maths Question and Answer

This is a tough Maths Puzzle Question which will test your IQ. In this puzzle, you are shown some numbers in the Squares. Try to find the hidden relationship among the given numbers and then find the value of the missing number which will replace the question mark.
This Math Question, I created long back. While publishing, I was trying to find the logical reasoning used in this maths but failed to recall the logical flow in this Maths Puzzle. Thanks to my high IQ Mensa friends' help, I could solve it and recall the logical reasoning used in this Maths Puzzle Question.

Can you find the value of the missing number?

The answer to this "IQ Test Maths Question", can be viewed by clicking on the answer button.

The Answer is 11.
Each corner number in each square makes an arithmetic series with the corresponding numbers in the other squares moving from left to right and then up to down.

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