a mystery or riddle that is difficult to understand or explain

a statement or question having a double or veiled meaning, put forth as a puzzle to be solved

answer to a riddle

riddle about a Chinese character

to form an opinion or make a conjecture without much evidence

riddles written on lanterns (e.g. for the Lantern Festival at the end of Chinese New Year)

a puzzle, mystery, or enigmatic statement, often used figuratively to describe cryptic communication

the text or part of a riddle that contains the clues

to talk in riddles

to answer or solve a riddle

(slang) (attributive) mysterious; enigmatic (calque from Japanese [[谜|謎|mi2]] の "nazo no")

a riddle

an unsolved mystery; a riddle that has yet to be explained

Spring lantern riddles (guessing game at Lantern Festival [[元宵节|元宵節|Yuan2 xiao1 jie2]], at the end of Spring festival [[春节|春節|Chun1 jie2]])

a mysterious case or puzzle that needs to be solved, often involving a crime or unknown event.

crossword puzzle

a riddle, enigma, or logic challenge that requires ingenuity to solve

to solve the riddle