Enigma used in a sentence

Enigma in a sentence as a noun

Further, his reputation pre-Svbtle is what enabled Svbtle in the first place; where did that come from?In sum, the guy is an enigma to me.

I was at an NSA show and tell recently and they had an original enigma machine on display which speaks volumes.

We get plenty of shrewd businessmen; they aren't a dime-a-dozen, but they aren't an enigma either.

Google search is an enigma to me. I oscillate from being blown away by its intelligence and accuracy to being gobsmacked by its stupidity and inefficiency.

Is somewhere a database recording your inability to solve this twenty-first century enigma that you hold in you hand?You find the company web site.