Part 2 - Reading

As we've seen last lesson, there are big unanswered questions like 'are aliens real and have they visited earth?', but there are also other types of unsolved mysteries. Below, you have texts on different mysteries. Choose one, and then answer the questions below.

Texts

• The Pyatlov Pass incident
  The Dyatlov Pass incident was an event in which nine Soviet trekkers died in the northern Ural Mountains in uncertain circumstances.
   
• The Boy in the Box
  The "Boy in the Box" is an unidentified murder victim; a 3- to 7-year-old boy.
   
• Mary Reeser
  A woman whose death was purported to be a case of spontaneous human combustion.
   
• The Winchester Mansion
  A bizarre house, built to appease ghosts.
   
• Muhammad Ali and the Phantom Punch
  The ending of the second Ali-Liston fight remains one of the most controversial in boxing history.
   
• Havana Syndrome
  Havana syndrome is an alleged set of medical symptoms with unknown causes, experienced mostly abroad by U.S. government officials and military personnel.

Questions

1. Who is / are the main subject(s) of this mystery?
2. When and where does the mystery take place?
3. How come it isn't / can't be solved?
4. Summarise in Max. 10 sentences what the mystery is about.
5. What are the (main) theories about the sollution to the mystery? 
6. Which of these theories do you think is most likely? Why?