For hobbies, Dupin is "fond" of enigmas, conundrums, and hieroglyphics. These cover a variety of subjects related to mysteries, the paranormal, and historical enigmas. Puzzles, enigmas, oracles; 15. Nut and her brother, Geb, may be considered enigmas in the world of mythology. It is considered one of the enduring enigmas of Colombian art. She was the recipient of another of Elgar's enigmas, the so-called Dorabella Cipher. Mack has described dark matter as one of science's "most pressing enigmas". Trott's story represents one of the great enigmas of Australian cricket history. These enigmas were notable for being misleading and confusing as well as very long. The Nationalist government continued using its 50 Enigmas into the 1950s. Among the enigmas, apparently, is his birthdate. The Army and Air Force Enigmas were used with several rotors, initially three.