puzzle
US /ˈpʌz.əl/
UK /ˈpʌz.əl/

1.
puzzle, énigme
a game, toy, or problem designed to test ingenuity or knowledge.
:
•
She spent hours trying to solve the jigsaw puzzle.
Elle a passé des heures à essayer de résoudre le puzzle.
•
The crossword puzzle in the newspaper was very challenging.
Le puzzle de mots croisés dans le journal était très difficile.