13. It is the eve of Watson's wedding and, as part of his duties as best man, Holmes is expected to organize a stag party for Watson. Whom, among Watson's friends, has Holmes invited?
From Quiz Sherlock Holmes: A Game of Shadows
Answer:
Nobody
Holmes has completely forgotten his duties, of course, but is unwilling to admit this. Travelling in Holmes' motorcar, Holmes and Watson arrive at a club where the only other guest is Holmes' almost equally eccentric brother, Mycroft. When Watson questions where his mates from the above mentioned groups are, Holmes makes excuses for each, implying that he invited them but they declined to come. Watson is not fooled and leaves Holmes to play cards. Holmes meets with Simza Heron, a gypsy woman.