Is it permissible to hang educational papers on walls containing virtues of the Companions, interpretations of verses and their sayings, prophetic hadiths with their explanations, and virtues of deeds, for the purpose of teaching and reinforcing memorization, while ensuring their authenticity and that they will not be subjected to disrespect?

There is no harm in hanging Qur'anic verses or chapters on the wall if the intention is for learning, admonition, or remembrance, provided that the place is respectable. However, if the intention is for protection from jinn, the evil eye, or similar things, then it is not permissible because it has no basis in Islamic law and is not mentioned therein.