Mystery

kryminał

(account, often about crime or murder, with an ending explaining all that happened)

misterium

(something secret or unexplainable)

misterium

(event in the life of Jesus used as a focus for devotions)

tajemnica

(something secret or unexplainable)

tajemnica

(someone or something with an obscure or puzzling nature)

zagadka

(someone or something with an obscure or puzzling nature)