Question

Can you complete the table series puzzle by replacing the ?? with the correct number?

81   36   144 

??   25   16 

64   100  49

Answer 1

121

81 36 144
?? 25 16
64 100 49

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9^2 6^2 12^2
?? 5^2 4^2
8^2 10^2 7^2

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9 6 12
? 5 4
8 10 7

Numbers from 4 to 12 and missing number 11. 11^2=121