99 and 1 more stupid question about art

We all know something about art to varying degrees, heard something, accidentally noticed something, and in some ways we are deeply convinced from childhood. When we come to the museum, the guide becomes an intermediary between us and art. It is he who can answer here and now to the question that interests us. But sometimes for one reason or another he does not manage to do this, and we do not always decide to ask something.
Alina Nikonova-art critic and blogger, answers questions that you did not dare to ask:
- Why did Picasso write such strange paintings and what is brilliant in them?
- How to distinguish a good picture from a bad?
- How much does everything that is in museums cost? Something mystical?
- Why are some paintings attacked by crazy people?
- How to understand the paintings of Salvador Dali if they are so unusual?