Who among us has not dreamed of becoming Sherlock Holmes, at least for a while, who will solve any crime in an instant? Even if not as loud as the arrest of Professor Moriarty. And even if it is much more modest, it is much more important in life. Who reported my absenteeism to the boss? Who told my wife (husband) about my mistress? Who gossiped that I fell in love with Sasha (Masha, Vasya)? Who stole my wallet? Who constantly clogs the garbage disposal? Who writes obscene words in an elevator? Sherlock, of course, will not answer these questions. But, having practiced solving the problems in this book, you will soon be able to find the culprits who are poisoning your life. After all, detective problems develop such detective qualities as: observation, thinking, imagination, sensitivity, perception, intelligence, resourcefulness and, most importantly, skill listen and hear. Consider this book a special training session that will allow you to think clearly and clearly. But a clean and strong mind is the key to success, health and happiness.