Does copyright infringe the creation of a collection of answers to a problem book in computer science without citing the texts of the problems?

Question

Law in IT

Good afternoon!
Will the publication of a collection of answers to a Russian problem book in Russia violate Russian law? Thank you.

Answer 1

On the website of this problem book or in the imprint it is described how its data can be used.

Answer 2

Not infringing, but you should avoid using registered trademarks in your answer. This may be the name of the printing house that issued the problem book, a logo or a phrase.

Answer 3

Question: Will I violate something if I write the answer to the author's riddle on my instagram?
Answer: You yourself are not funny?) No, of course