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Klassische Brain Twister von Poniachik Lea, Rod Marshall, Tim Sole, Jaime Poniachik

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4,74 €

To solve these tantalizing teasers, you'll need to think carefully and logically. No special knowl- edge is required-just your common sense. Relax and have fun as you focus on this perplexing problem: If two earthquakes are a point apart on the Richter scale, then the one with the higher reading is ten times as powerful as the other. Suppose the two earthquakes differ by half a point. How much more powerful is the one with the higher reading? Now take it to the next level with the rest of the confounding brain twisters inside!

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