Colored Names & Hair
after Martin Gardner
Professor Merle White of the mathematics department, Professor Leslie
Black of philosophy, and Jean Brown, a young stenographer who worked in
the university's office of admissions, were lunching together.
"Isn't it remarkable," observed the lady, "that our last names are Black,
Brown and White and that one of us has black hair, one brown hair and one
"It is indeed," replied the person with black hair, "and have you noticed
that not one of us has hair that matches his or her name?"
"By golly, you're right!" exclaimed Professor White.
If the lady's hair isn't brown, what is the color of Professor Black's