• enigma ⪢⪢
An _____ is someone or something that is mysterious or hard to understand.
http://qindex.info/i.php?x=12373

• enigma ⪢⪢
The theft of the painting is an _____ to the investigators.
http://qindex.info/i.php?x=18718

○○○ enigmatic ⪢⪢
However the exact process remains _____ .
http://qindex.info/i.php?x=27969

○○○ enigmatic ⪢⪢
From _____ pyramids that have puzzled scholars for centuries to forgotten cities buried beneath the sands of time.
http://qindex.info/i.php?x=27765

• top 10 lost treasures
topple, the Lufthansa Heist, Siam, the Holly Grail, Kruger, Fenn, Faberge, the Flor de la Mar, Malacca, the Knights Templar, Nova Scotia, Anglo-bore, enigmatic
http://qindex.info/i.php?x=7408

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