For more than 10 years, the English popular science magazine “New Scientist” has been running the “Last Word” column. The editors receive weekly questions from curious readers on the most mundane topics relating to various aspects of life. Readers of the magazine also answer intriguing, unexpected and funny questions, showing not only a breadth of knowledge, but wit, imagination and resourcefulness. Over time, the magazine's editors came up with the idea of collecting the most intricate questions and competent answers in one book. It does not unravel the mysteries of existence, but it explains why tea changes color if you add lemon to it, and why a cat, falling from the 7th floor, can be injured, but never from the 10th. Fascinating reading for people of different ages and different professions.