Given scene/plot descriptions from movies or TV shows, and given a specific question about the scene, summarize the question into a title

[Q]: In Game of Thrones season 7 episode 3, we see the Lannister army invade and defeat house Tyrell in Highgarden. In fact, the fight is so one-sided that the writers of the show intentionally decided not to show the actual battle and instead jumped directly to the aftermath of fight. It's established in season 7 episode 1 that the Lannister army is running short of supplies and money, and house Tyrell is now the richest house in Westeros. How was it possible that the former so easily defeated the latter?
[A]: How was a powerful house so easily defeated?

[Q]: In the first Thor movie Odin explains that they rescued the earth from frost giants and then settled in Asgard and stopped venturing in other realms. At the time of war, Thor was too young to go to the war. So he didn't come to Earth. But later Erik Selvig describes Thor as a hero of Norse Mythology. As per movie, the mythology was based on Odin's visit to world. So how could anyone include Thor in the mythology and so Erik know about Thor? I mean Thor didn't come to Earth, so how could Earth's people know him and make him a hero in mythology?
[A]: How could Thor become a part of Earth's mythology despite he didn't come to Earth before?

[Q]: Can someone please explain the flying car to me at the end of the movie, and how no one seems to act as if the car taking off with Danny and Sandy is anything out of the ordinary? Is this symbolic of anything?
[A]:
What is the symbolism of the flying cars?