There are always moments in life where we have to leave the beaten track, whether on the Job or in private life. Many a Problem dissolves better in an unconventional way.

But it is not so easy to go new ways. Often learned solution techniques, and thinking strategies are available to us in the way. Cross for many of us think hard.

The riddle of the week it is often necessary to be creative and to think differently, because classic, more schematic approaches work. And it’s not even necessarily a Problem of logic or mathematics, as the following exercise shows. Can you solve this puzzle?

The holidays are over. In the class two new students that you can hardly distinguish from each other sit. “Are you sure twins?”, the class teacher asks.

“no,” answer the two boys.

The teacher is surprised and looks into your documents: Both have the same birthday and the same parents. How can that be?

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