Logic Puzzles · Billy-B
Logic Puzzle #52
From Billy-B's legendary 1001 Puzzle Collection — preserved on Puzz.com since 1998.
Puzzle #52
Four individuals made the following statements, & each 1 is a knight or a knave. Which ones are knaves, if any? A. Hydroponics is a science that deals with fisheries. B. D always tells the truth. C. The primary colors in the spectrum are red, yellow, & blue. D. C always tells the truth.
Reveal Answer
All 4 individuals are knaves — The primary colors are red, yellow & blue for pigments, but for the spectrum they are red, green & blue. This was a tough puzzle if you didn't use reference aids - not many people know these things!
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