ଅର୍ଥ : Something that baffles understanding and cannot be explained.
ଉଦାହରଣ :
How it got out is a mystery.
It remains one of nature's secrets.
ସମକକ୍ଷ : closed book, enigma, secret
ଅର୍ଥ : A story about a crime (usually murder) presented as a novel or play or movie.
ସମକକ୍ଷ : mystery story, whodunit