An enigma and a conundrum are both riddles, puzzles, problems to be solved which are difficult to solve.
How about a conundrum? Or an enigma.
enigma, conundrum
An enigma wrapped in a conundrum.
An enigma and a conundrum are both riddles, puzzles, problems to be solved which are difficult to solve.
Conan - 2010 The Conundrum Enigma 1-35 was released on: USA: 19 January 2011
Conundrum, enigma, riddle, mystery, problem...
A paradoxical enigma means a contradicting puzzle. Paradoxical means contradictory and an enigma is a problem, challenge, conundrum, riddle, or puzzle.
enigma
Enigma
An enigma is a puzzle, or a situation that is perplexing, inexplicable, or ambiguous. Synonyms can be puzzle, riddle, mystery, question, or conundrum.
Some people would call it an "enigma" or a "conundrum."
A paradoxical enigma means a contradicting puzzle. Paradoxical means contradictory and an enigma is a problem, challenge, conundrum, riddle, or puzzle.