conundrum
definition
a confusing and difficult problem or question
example
The team faced a conundrum when trying to balance the budget while ensuring the project's success.
synonyms
dilemmapuzzleproblem
word origin — The word 'conundrum' is believed to have originated in the late 16th century, possibly from the Latin word 'conundrum', a variant of 'conundra', or from a playful alteration of 'condendum', based on a humorous or fanciful derivation.