Book quiz: Can you guess these Agatha Christie classics from a one sentence description?

Whether you know the plots from reading the books or watching the TV adaptations, there can't be many people who haven't come across at least one Agatha Christie plot. We challenge you to work out which of her crime novels we are describing below - all you have to do is name the book! Not sure? The answers are at the bottom.

A snowbound train becomes the scene of a murder where almost everyone has a motive.
Ten strangers are invited to a remote island, only to discover they may have been summoned there to die.
A glamorous heiress is murdered during a luxury river cruise in Egypt.
A vicar’s peaceful village life is shattered when a deeply unpopular local man is found dead.
A famous detective investigates the murder of a wealthy man found stabbed in his study — but the narrator may know more than he lets on.
A young woman vanishes from a train, and only one fellow passenger seems to believe she ever existed.
A children’s party turns sinister when a girl is found drowned after claiming to have witnessed a murder.
A seemingly respectable village is hiding secrets, poisonings and one very observant elderly sleuth.
A murder at an archaeological dig in Mesopotamia reveals that the past is never quite buried.
A family Christmas gathering turns deadly when a tyrannical patriarch is found murdered.
A woman believes she has seen a murder through the window of a passing train.
A detective is called to investigate after a wealthy businessman is found dead beside an open letter and a curious clue.
A seaside hotel full of holidaymakers becomes a crime scene when a glamorous actress is murdered.
An old nursery rhyme appears to predict a series of deaths inside a sinister family home.
A young couple inherit a house with a dark history — and a mystery involving a body in the library.