Short answers, pulled from the story.
The soul enters the Hall of Two Truths where its heart is weighed against the feather of Ma'at. If the heart is heavier, the demon Ammit devours it and the soul ceases to exist. If the heart is lighter, the soul proceeds to the Fields of Aaru to work under the protection of Osiris.
The soul must cross the River Styx by paying a coin to the ferryman Charon to reach Hades. Three judges named Aeacus, Rhadamanthus, and King Minos determine the destination based on moral quality. The righteous go to the Elysian Fields, the wicked to Tartarus, and the majority to the neutral Asphodel Fields.
The Talmud introduced the World to Come as a place where the soul undergoes a period of reflection and judgment lasting no more than a year. This period serves as a re-schooling where the soul gains wisdom from reviewing its earthly errors. Maimonides described the afterlife in spiritual terms where the soul continues to exist after separation from the body.
The resurrected must cross the bridge of As-Sirāt over the pit of hell where the condemned fall into fire while the righteous cross without difficulty. Before this judgment, the soul is questioned by two angels named Munkar and Nakīr in the grave. The Quran describes paradise as Jannah with cool shade and eternal youth, while hell is Jahannam with torment and changing skin.
The soul or jiva passes through a sequence of human and animal forms driven by the law of karma. Buddhism teaches rebirth occurs without an unchanging self and is conditioned by actions based on greed, hate, and delusion. The cycle continues until the soul achieves moksha or liberation and merges with the ultimate reality.
The Seventh-day Adventist Church believes that the dead remain unconscious or in a state of sleep until the return of Christ in judgment. At death, all consciousness ends and the spirit returns to God who gave it. The dead do not know anything or do anything until the resurrection.