The 'Do you know?' series is designed for the youngest viewers who are beginning to learn the world around them. Interesting improvisations will help them to quickly socialize and get answers to common questions. For example, why do the dessert horns are made in the form of a cone, how does a washing machine work, who takes the garbage from the containers near our homes, what are the functions of firefighters rushing to the burning object on large red cars with an ear piercing siren.