Ответ:

  1. True. The events took place in November.
  2. True. It was their twentieth wedding anniversary.
  3. False. They lived in Edinburgh, Scotland.
  4. False. The cook prepared the dinner.
  5. False. Mrs. Molstone was a physicist; Mr. Molstone was a surgeon.
  6. True. Amelia was lying on the floor.
  7. False. She had a knife in her back.
  8. True. Amelia had been stabbed.
  9. True. Professor Brandon said he had gone to the garden to smoke a cigar.
  10. False. The cook only said that the maid could confirm his story.