Conundrum(noun)
A confusing problem or question that is very difficult to solve.
Hindi meaning:समस्या
Synonyms: Problem, Difficult Question, Quandary, Poser, Enigma, Dilemma
Antonyms: Blessing, Boon, Benison, Grace
Example: One of the most difficult conundrums for the experts.
Trick to remember: Kaun rat ko drum bajata hai ye conundrum hai 
