Previous Brain-Twisters

Brain-Twisters I
"Lady or the Tiger" puzzles, a seemingly easy problem in Euclidean geometry, and a dictatorial conundrum involving the reproduction of hermaphrodites.
Brain-Twisters II
Brought back by popular demand, yet more of the "Lady or the Tiger" puzzles.
Brain-Twisters III
Inheritance problems, bankers who do not all speak the truth, and two simple puzzles in elementary geometry.
Brain-Twisters IV
Yet more of the "Lady or the Tiger" puzzles, a variation on one of the geometry puzzles presented last month, and the perils of proofreading.

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Revised: June 14, 1999