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by Gianni A. Sarcone & Marie-Jo Waeber
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Puzzle # 11A |lateral thinkingLogic | Difficulty level: bulb

Kangaroo stroller
   The mother of Andres lives in Australia and has a very special nanny: a kangaroo! When she wants to carry her babies out for a walk, she just uses the kangaroo as a ‘leaping’ stroller by placing in its marsupium her 3 sons Pim, Pam and ... Oh, can you guess what is the name of the third son?

abracadabrain puzzle 9
Source of the puzzle: © G. Sarcone, Avianca Journal, no. 37.
Please report any error, misspelling or dead link. Thanks!

To puzzle 11A

The Kangaroo stroller
No, his name isn't Pum, but Andrès!

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Puzzle # 12A | lateral thinking Lateral thinking | Difficulty level: bulbbulbbulb

abracadabrain puzzle 10

Ghost hole
   Explain why when 3 pieces of the square shown in a) are rearranged as illustrated in c), we obtain the same square but with a mysterious hole! Where did the missing piece go???

Source of the puzzle: © G. Sarcone, New Optical Illusions.
Please report any error, misspelling or dead link. Thanks!
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To puzzle 12A

Solution Ghost Hole
Ghost hole

If you could stack square A on the top of ‘square’ B, you’d see a tiny difference (in red, see above). This difference represents the area of the hole in ‘square’ B. So nothing disappeared, the missing piece is just redistributed in the whole area of ‘square’ B (square B isn’t actually a square, but a rectangle).

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