TASK DEFINITION: Given a paragraph about movies and a set of conversational questions and answers about the paragraph, say whether the passage contains sufficient information to answer the follow-up question. Say Yes if it is answerable; otherwise, say No. The paragraph has the prefix 'CONTEXT:'. Each conversation question has a prefix `Q:` followed by the answer prefix `A:`, and the follow-up question has a prefix `FOLLOWUP_Q:`.
PROBLEM: CONTEXT: Oskar does not become a vampire in the book. It is Håkan who becomes a vampire in the book. Also in the book, it is disclosed that Eli is a boy who was castrated years ago when he was converted to a vampire. In the movie, neither Håkan becomes a vampire nor is Eli disclosed to be a boy. Oskar and Eli flee. And as atm mentions in the comment, Oskar will grow old just like Håkan.  <sep>  Q: What happened to Eli and Oskar in Let the right one in?

SOLUTION: Yes

PROBLEM: CONTEXT: It is a common fact on TV that combat and injuries are stylized to make it look good rather than realistic. Have a look at pretty much any film fight where someone knows a martial art and compare that to someone who knows a martial art fighting for real. They are worlds apart. Even if you look at American Wrestling and BJJ you can see the difference. Knocking someone out with one punch is extremely difficult, especially if they are used to combat. I have taken an unpulled hit from a quarter staff on the top of my head which caused me to blackout later but I still didn't go down at the time. After almost 20 years of martial arts and living in rough areas I have only been knocked unconscious with one punch once, when I was 17 by the European Kickboxing champion. I was punched to the ground by a bouncer in Portsmouth when I was 20 but was still conscious until he stamped on my head. Most of the people in the Walking Dead would have starved or succumb to injuries by now if they were suffering this scenario for real. Not to mention being struck down by illness. It is just a convention of the media that people are routinely knocked out in one hit and recover completely when the plot demands it and don't when the plot demands that instead.  <sep>  Q: Are there a lot of head injuries in the Walking Dead? A: It is just a convention of the media that people are routinely knocked out in one hit and recover completely when the plot demands it and don't when the plot demands that instead  <sep> FOLLOWUP_Q: Who is one of the characters that has a lot of head injuries?

SOLUTION: No

PROBLEM: CONTEXT: We're not given an on-screen explanation. That said, the 80s is closer to the era when Morse code was somewhat relevant. As mentioned in comments, knowing Morse code was a requirement for a ham radio license. We know the are interested in the radio, and AV club in general, so this isn't out of the ordinary. Some radios also used to include Morse code charts on the front; so Will could have memory from those as well.  <sep>  Q: Why does Will know Morse code? A: We're not given an on-screen explanation  Q: How do Hopper and Eleven know it? A: knowing Morse code was a requirement for a ham radio license  Q: What can you tell me about ham radio? A: We know the are interested in the radio, and AV club in general, so this isn't out of the ordinary  <sep> FOLLOWUP_Q: Is there anything else?

SOLUTION:
Yes