Living Mathematics. Fun Algebra

Why is December called December, which means "tenth," even though it is actually the twelfth month? How can we calculate how much hair on a person's head grows on average before falling out? Can we really count, or does it... just seem that way? Answers to these and many other questions can be found in the fascinating book by Y. Perelman "Living Mathematics," where the author has gathered various mathematical puzzles and riddles, giving them the form of curious short stories. This edition also includes the work "Fun Algebra," which aims to "cultivate a taste for studying algebra" in the reader and to offer them "various problems with unusual plots that stimulate curiosity, engaging excursions into the history of mathematics, and unexpected applications of algebra to practical life."