Did Mark Twain create Sherlock Holmes and Dr Watson - true or false?

Oh so obviously false! Mark Twain (Samuel Langhorne Clemens) was the writer of the stories involving Tom Sawyer and Huckleberry Finn and those took place in North America. He also wrote The Prince and the Pauper. Sir Arthur Conan Doyle, also the writer of the stories of Professor Challenger, wrote four books and fifty-six short stories on that famous Consulting Detective.