Round twenty-one's answers. The Olympics run sixteen days, Harry Potter is eleven, and a cannon is a stroke striking two object balls.
Arthur Conan Doyle wrote Sherlock Holmes, Jeff Bezos topped the 2018 Forbes list, the crash came in 1929, and the stirrup-shaped bone is the stapes.
- 16 days
- 11
- A cannon is a stroke in which the cue ball contacts more than one object ball
- Arthur Conan Doyle
- Jeff Bezos
- 1929
- The stapes
- 5 days
- Friends
- The British Empire
- Queen Victoria
- Seven: I, V, X, L, C, D and M
- Pacific, Atlantic and Indian Oceans
- Light
- Humidity
- Internet Protocol
- Flag of Nepal
- Sajid Javid
- The African elephant
- 20