If there's a kind of puzzle not included in this incredibly varied collection, we can't imagine what it is. There are math problems, lateral-thinking conundrums, brain teasers, whodunits, IQ tests,... This description may be from another edition of this product.
I travel a lot for work, so I need to keep myself occupied on flights, etc. What better way than to stimulate my thirst for knowledge? It made the time fly by.
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