Detective Fiction - Random Trivia Questions

There's no mystery about this week's topic: identify the following novel and short story sleuths and authors...

Detective Fiction Questions

• Q1) What author chronicled the detective work of Hercule Poirot and Miss Jane Marple?
• Q2) What fictional detective debuted in the book A Study in Scarlet?
• Q3) Who was the fictional detective of dime novels written by J.R. Coryell and several other authors?
• Q4) What were the famous fictional teenage detectives Frank and Joe collectively known as?
• Q5) What does the letter 'A' stand for in the first novel in Sue Grafton's Kinsey Millhone detective series?
• Q6) What fictional child detective is the 10-year-old son of the chief of police in Idaville?
• Q7) What famous fictional detective did author Mickey Spillane create?
• Q8) What author's best-selling novels was the TV show Spenser: For Hire based on?
• Q9) What famous fictional detective did author Earl Derr Biggers create?
• Q10) Who created the fictional detective Philip Marlowe?
• Q11) What author created detective Adam Dagliesh?
• Q12) Who is the hero of Rex Stout's mystery novels?