Question: How could Skaar be Bruce's son? In "The Avengers: Age Of Ultron", Bruce tells Natalie that he can't have kids.
Question: Why did the police arrest Reacher? He was simply passing through.
Answer: As Reacher had arrived in town just after the murder occurred and being a stranger, he became a suspect (or at least a person of interest) and taken into custody for questioning by the police. He was released fairly quickly. It was coincidental timing of an outsider arriving at the same time as the crime occurred.
Question: In the opening sequence, Elsa narrates that violence "stranded us on the beaches of New Jersey." What happened in New Jersey that she was referring to?
Answer: Elsa's narration is a loose timeline, before 1883 (the origin story show). Elsa states "violence has always haunted" her family. They, who travelled, suffered on the overcrowded immigrant "coffin ships" (called this because so many died) sailing to North America. Upon their arrival in the new country, they were "stranded" when the ship landed in New Jersey, at one of the immigrant landing depots on the Northeastern shores. (Then, they served in the armies during the American Civil War, "devoured" at the bloody Shiloh and Antietam battlefields.)
Answer: Bruce can't have human kids, but Hulk has entirely different physiology, and Skaar's mother is no doubt not human either. Changes the dynamic entirely.
Jon Sandys ★