Now that the presidential inauguration is behind us, we can officially turn our attention to this week's other massively anticipated, world-changing event: the return of Lost! It's been eight long months since we last left the island, though, and, despite our excitement, we'll admit that we can't quite remember all of the unsolved mysteries that television's most complicated show was juggling at the conclusion of its fourth season. Who's the Eyeliner guy again? How many toes did that statue have? To better prepare you for tonight's two-hour season premiere, we've compiled a list of twenty big questions we hope Lost's writers answer soon.