Misc: The woolly mammoth, extinct since the Ice Age, had tusks almost _____ feet high?

Questions

In which of Charles Dickens' novels would you find the character Dora Spenlow?

In which state of the U.S.A. would you find Mount Rushmore?

Which modern Irish writer's novels include Dublin Four and Evening Class?

From which musical does the song Surrey With the Fringe on Top come?

Which modern author wrote The Regeneration trilogy?