Go back to the text and re-read a passage where Watson made a discovery. If Sherlock praises him, you've got your answer. I'm sorry if this wasn't much help, but I don't have any text to go off of.
Answer:
Explanation:
Question Four: Salvador's eyes are the color of a caterpillar's body.
Question Five: It grows smaller and smaller, and begins to disappear into the horizon. It flies in the air like the memory of kites blowing in the wind.
Answer:
Identity of the protagonist
Explanation:
Answer:
A part of the sailboat that changes the direction of the boat.
Explanation:
The setting which begins to answer your question is the sentence that begins "Most conversations between husband and wife ... " this is near the beginning.
The real core of your question comes with "This aloofness ... " which shows how he handles the disputes with his wife. This is followed by "He attained this by ... " which tells exactly how the aloofness came about. Finally he surrounds himself with people that insulate him from the fights he has will his wife. His bridge games probably insure that he does not have to talk to her.