Could you survive a day after the "world ends"?

So after watching many anime that throw their characters into various states of chaos and insanity after their "world ends", I thought to myself..."How long could I survive in that situation?"

Yes, MakiMaki, why so serio?

Of particular interest are the scenarios that could happen in our world without much technological advancement (or perhaps in spite of)

High School of the Dead, and the like come to mind.

Devil Survivor 2 and Attack on Titan offer more extreme examples, but also throw their worlds into general chaos.

So what do you think? Could you survive? What anime scenario do you think offers the best chances for survival?

/endMakiMakiSerious XD