загадка meaning in English

conundrum [conundrums]▼(difficult question or riddle)
noun
[UK: kə.ˈnʌn.drəm] [US: kə.ˈnən.drəm]

enigma [enigmata]▼(something puzzling, mysterious or inexplicable)
noun
[UK: ɪ.ˈnɪɡ.mə] [US: ə.ˈnɪɡ.mə]

mystery [mysteries]▼(something secret or unexplainable)
noun
[UK: ˈmɪ.stə.ri] [US: ˈmɪ.stə.ri]

puzzle [puzzles]▼(anything difficult to understand or make sense of)
noun
[UK: ˈpʌz.l̩] [US: ˈpʌz.l̩]

riddle [riddles]▼(verbal puzzle)
noun
[UK: ˈrɪd.l̩] [US: ˈrɪd.l̩]