Disclaimer: bear in mind that the novel was written in 1939, hence the use of the derogatory and offensive term “Indians”.
Genre: whodunit, closed-door

​​-- "Ten little Indian boys went out to dine;

One choked his little self and then there were nine.

Nine little Indian boys sat up very late;

One overslept himself and then there were eight.

Eight little Indian boys traveling in Devon;

One said he'd stay there and then there were seven.

Seven little Indian boys chopping up sticks;

One chopped himself in halves and then there were six.

Six little Indian boys playing with a hive;

A bumblebee stung one and then there were five.

Five little Indian boys going in for law;

One got in Chancery and then there were four.

Four little Indian boys going out to sea;

A red herring swallowed one and then there were three.

Three little Indian boys walking in the zoo;

A big bear hugged one and then there were two.

Two Little Indian boys sitting in the sun;

One got frizzled up and then there was one.

One little Indian boy left all alone;

He went out and hanged himself and then there were none."

Genre: behind closed-doors, comedy, mystery 

Trivia: a remake came out in 2007, starring Michael Cane as Andrew and Jude Law as Milo. I have not seen this one and would recommend to watch the 1972 version first!