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The zebra puzzle is a well-known logic puzzle. It is often called Einstein's Puzzle or Einstein's Riddle because it is said to have been invented by Albert Einstein as a boy.〔 〕 The puzzle is also sometimes attributed to Lewis Carroll.〔 〕〔 〕 However, there is no known evidence for Einstein's or Carroll's authorship and the ''Life International'' version of the puzzle mentions brands of cigarette, such as Kools, that did not exist during Carroll's lifetime or Einstein's boyhood. There are several versions. The one below is from the first known publication in ''Life International'' magazine on December 17, 1962. The March 25, 1963, issue contained the solution below, and the names of several hundred solvers from around the world. It is often claimed that only 2% of the population can solve the puzzle. == Text of the ''Life International'' puzzle == Assuming that one person drinks water and one owns a zebra, then it is possible not only to deduce the answers to the two questions, but to figure out who lives where, in what color house, keeping what pet, drinking what drink, and smoking what brand of cigarettes. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Zebra Puzzle」の詳細全文を読む スポンサード リンク
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