Is it allowed to send peace and blessings upon the parents of the Prophet Mohammad, peace and blessings be upon him?

There is a circulated video on social media where a Jordanian claims seeing the angels. How true is this?

Do people die when their appointed term is reached? And, is there a difference between the appointed term and the term appointed to be fulfilled, because people are circulating an article stating that those who failed to take the precautionary measures died because their appointed term was fulfilled and not reached?

Does the deceased hear the supplications or recitations of those visiting his/her grave? And does making constant supplications for the deceased who didn`t adhere to performing the prescribed prayers ameliorate his/her affliction?

In Al-Fiqh al-Akbar, Abu Hanifa (May Allah have mercy on him) said: "Believing that Hell will cease to exist-the torment of the Kaafireen (Disbelievers) won`t last forever-is Kufr (Disbelief)." I have also read this in several books of Shafi, Maliki, Hanafi, and other scholars, although some of them have books indicating that Hell will never end and the Kaafireen will be tormented there forever, as supported by a great deal of evidence from the Quran and the Prophetic Sunnah. As far as I know, this is by `ijma`(Consensus) of the scholars. However, a few days ago, I read a book where it was stated that Hell will cease to exist and the torment of the Kaafireen won`t last forever. There is also a view that these Kaafireen will eventually be admitted to Jannah (Paradise). This view felt so strange to me. Is it permissible for a Muslim to believe that Hell will cease to exist? Is saying so considered Kufr or going astray? What is the ruling of Sharia on this?

Is it true that none of Mohammad`s (PBUH) nation shall dwell in Hell eternally, and that those sent to it are tortured according to their sins, but don`t dwell therein eternally?

Are the men on the Heights going to enter Heaven?

Does Hell exist and are the disbelievers abiding therein forever?