1. Why does the island move?
It got tired being in the same old place.
2. Who made the huge four-toed statue?
People did, back in the stone age.
3. Why does it only have four toes?
Apparently they only knew how to count to four when they were making it. Evolution takes time you know.
4. Why is the island a super-magnet?
5. Where did Jacob’s and Smokey’s step-mother come from?
Do I really have explain how human reproduction process works?
6. Who taught Jacob the secrets of the island?
Well duh! You too would learn all the secrets about the island in which you're stuck for centuries.
7. How did the Dharma Initiative construct massive complexes?
Seriously, you never seen a building being constructed?
8. How did the Dharma Initiative learn about the island?
Good question.
9. How could Richard travel off the island?
It turns out Jakob forgot to tell him that he can leave the island whenever he wants.
10. Why did Smokey need Locke’s body when there are plenty of corpses around?
There were no corpes that had Locke's sexy eyes.
11. Why can’t Smokey just fly over the sonar fence?
Because Smokey is afraid of heights. Nobody's perfect you know.
12. Why does a ring of ash protect against Smokey?
Smokey's allergic to ash.
13. How does Walt figure into the end-game?
???
14. What’s the significance of the numbers and how are they connected to Jacob?
What kind of show about a mysterious super magnetic island with a smoke monster and people who don't age would be if it didn't have mystic numbers that mean nothing along with it?
15. So what was the alternative reality?
It's a happy place where people go after they go through a freaky adventure on a mysterious Island.
16. Why were they missing people in the church? They were part of the alternative reality and the group in the island.
Again ???