How's your Monday coming along? Pretty rough? Well it's about to get a little hairier. If I'm not mistaken, this self-referential brain teaser is a play on the age-old Liar's paradox, (or, for those of you familiar with set theory, Russell's paradox), reframed in the form of a multiple-choice question.

Without clicking the Wikipedia pages linked to above, do you think you can figure out and articulate the problem behind this problem? ("Self-referential," by the way, was a pretty big hint.)

Via Patrick Hoeffler