Martin Gardner puzzles

Not surprisingly, some bloggers are remembering Martin Gardner by posting some of his classic puzzles.  There are three here, and three more here.

The second one has an extremely appropriate little animation in his memory:

Farewell to Martin Gardner

(If this doesn’t look animated in your browser, try following the link.)

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Ted Bunn

I am chair of the physics department at the University of Richmond. In addition to teaching a variety of undergraduate physics courses, I work on a variety of research projects in cosmology, the study of the origin, structure, and evolution of the Universe. University of Richmond undergraduates are involved in all aspects of this research. If you want to know more about my research, ask me!