1. By what name is 'The Boomerang Clue' also known? Why Didn't They Ask Evans? The ABC Murders The Pale Horse Sad Cypress

2. What is the more popular title for 'Murder in Hazelmoor'? The Listerdale Mystery Third Girl The Hound of Death The Sittaford Mystery

3. By what name is the 'Murder on the Calais Coach' also known? The Mystery of the Blue Train Nemesis 4:50 from Paddington Murder on the Orient Express

4. 'The Poison Pen' also known by which of the following titles? Three-Act Tragedy The Moving Finger Ordeal by Innocence By the Pricking of my Thumbs

5. By what name is 'So Many Steps to Death' also known? Destination Unknown They Came to Baghdad Death in the Clouds Passenger to Frankfurt

6. What is the alternative title for 'Dumb Witness'? Poirot Loses a Client Sleeping Murder Postern of Fate Witness for the Prosecution

7. By what name is 'Hickory Dickory Death' also known as? The Seven Dials Mystery The Clocks Hickory Dickory Dock Towards Zero

8. What is another title for 'The Thirteen Problems'? Murder is Easy Thirteen at Dinner The Tuesday Club Murders Murder in the Mews

9. By what name is 'Remembered Death' also known? Murder in Retrospect Dead Man's Folly Taken at the Flood Sparkling Cyanide

10. The popular record-breaking play 'Mousetrap' was published as a short story; what was the name of the story? The Secret of Chimneys One Two Buckle my Shoe Hickory Dickory Dock Three Blind Mice