[normloman]

Two of those three examples are horrendous. The second sounds like it's trying too hard to sound "hip" while the third makes applicants complete a tedious puzzle to apply. Using programming puzzles at the interview is bad enough. Making candidates jump through all those hoops just to apply is insulting.

[toomuchtodo]

You need a lot of "street cred" to use a puzzle in a job application. Google. Dropbox. Facebook. Maybe Twilio. Anybody else? immediately skip on to next one