Mystery used in a sentence

Mystery in a sentence as a noun

Seeing this resolution to the mystery made my day.

Its been "known" for years amongst that community that the collapse is caused by pesticides. Bayer has done an amazing job keeping this labeled a "mystery".

My favorite post:'''When you write that the "problem has been resolved," do you mean that when I open my computer it will no longer smell like a pack of well hydrated feral cats have used it for target practice resolved, or do you mean that you have resolved the mystery of what has caused the problem?