**genius puzzle**

There is a hidden pattern to get the number in a circle. Use all four numbers around circles to calculate the number in the center.

Math puzzle for beginners should be easy peasy for you. Can you guess the result?

created by zbynny

Can you also solve

Replace ?? with a number respecting the equations above. Find the pattern.

**Frog logic puzzle**Replace ?? with a number respecting the equations above. Find the pattern.