Riddles of the Sphinx: And Other Mathematical Puzzle Tales"Solving these riddles is not simply a matter of logic and calculation, though these play a role. Luck and inspiration are factors as well, so beginners and experts alike may profitably exercise their wits on Gardner's problems, whose subjects range from geometry to word play to questions relating to physics and geology. We guarantee that you will solve some of these riddles, be stumped by others, and be amused by almost all of the stories and settings that Gardner has devised to raise these questions." --Back cover. |
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Aleph-Null animal Asimov's Science Fiction Bagel barber BARBERPOLIA black hole blue called cards cell coin color Couth cube cylinder digits dime Dirac divided Earth elevator Ensign Pulver Evenoder face five Flanagan Flarp formula four galaxy gold talent graph green H H H H T H Hustle infinite integers king L-sphinxes letters line segment lo shu look magic constant magic square marble Mars Martin Gardner Mathematical Matsu Mersenne prime mirror moon move multiple naked singularity odd number orbit original numbers paradox parity path Pentomino perfect numbers pieces pile planet planiverse plank play player polyomino problem Pulver puzzle quadruple rep-tiles reverse rotation S. L. Greitzer science fiction scissors Second Answers section sequence shape side Snaag solar system Solomon solution spaceship spell sphinxes Tanya Thang Third Answers section triangle trick triplet turn Venus VZIGS word