Which statements below are TRUE?

• The first book about Sherlock Holmes was called A Study in Scarlet.
• The first book about Sherlock Holmes was called The Hound of the Baskervilles.
• Conan Doyle wrote 25 Holmes stories between 1885 and 1895.
• In 1895 he didn't want to write any more Holmes stories.
• In 1885 Conan Doyle stopped writing Holmes stories.
• Conan Doyle only wrote 25 Holmes stories in his life.
• In the story the Final Problem Holmes is killed in Switzerland.