Similar to the 'Lost' Connections thread - mostly stolen from other sites
Let me know of any others...
Why did the plane crash?
Where is the island located?
What is the black smoke?
What is the machine noise/thing that tried to drag Locke underground? Is it the same thing that grabbed the pilot?
Why do trees explode/vanish?
Where did the food drop come from?
How does the island heal people? We have had hints that the electromagnetic fields of the island may have healing powers.
What is the story behind the skeletons (Adam and Eve) with the black/white rocks?
What is the sickness that infected Danielle's group?
What's up with the polar bears (and Kate's horse and Jack's dad and the squawking bird for that matter)? Are they a)out of their head or b)a Dharma project like what's on the hatch door or c)something else altogether?
How did an enormous slave ship get to the middle of an "island?"
Where does the power line coming from the sea originate?
Do the numbers mean anything beyond being an easter egg?
Now that they have electricity and Sayid has some report with Danielle, why haven't they created a new SOS transmission? They know the numbers tranmission was maing it's way out of the 'zone' successfully.
How did a plane from Nigeria and a plane from Australia
both end up on that island(if it is an island)?
Why is the dark territory the dark territory?
What was the original purpose of the hatches?
Has that purpose changed over time?
What happens if they don't press the button?
Who drew the map on the blast door? Why did they draw it the map on the blast door instead of just on a piece of paper?
What is the significance of Widmore?
Who was Michael communicating with on the computer?
What do the hieroglyphics on the countdown clock symbolize?
Is there any significance to the sulfur smell of the shower?
What is the (Pala?) ferry mentioned in the Pearl video?
What happened to Marvin Candle's hand?
Where does the information/ research that goes into the pneumatic tubes in the Pearl station go to?
How many groups of Others are there?
Who were the Others in the hatch with Claire?
Who is fake Henry Gale? He told Locke his mission was to bring back Locke and that he would be killed by the leader if he failed.
What do they consider a "good" person worth kidnapping? Note that Henry told Locke that he is considered good.
Why do The Others claim they can't go to the Losties camp themselves ?
Why are they so sure they are on an island?
Why is there so much apathy and lack of communication among them?
Who was on the phone that interrupted her drink with Jack?
Is he really dead?
Who is the daughter he was trying to see in Australia?
What happened to her?
Was told by a psychic that she must raise the baby. Then he backtracked and arranged to send her to America to give up the baby for adoption. Did the psychic foresee the crash?
Why did the psychic foresee that caused him to tell her she must raise the baby herself?
Why does Claire's baby daddy art work look so much like that "art" on the island?
Where did he go?
Will he figure out where he knew Libby from now?
Where or how did he become such a crackshot with a gun?
What happened to the body of Jack's dad?
How could Jack fall out of a breaking up airplane traveling hundreds of miles an hour and land unhurt in some trees?
How/why did he get the tattoos?
Who did Sarah leave him for? Was she really pregnant? Was she lying?
Why does it seem Jack was the only one thrown really far from the plane?
Where exactly did Kate end up after the plane crash? We first see her coming out of the jungle.
Was Libby stalking Hurley?
Why was Libby in the hospital with Hurley?
How was she released from the hospital?
Why was Libby in Australia and why was she on the flight?
How did Locke's legs get injured?
What was the secret he whispered to Walt in the pilot of the show? Was it the secret about his paralysis?
How the hell can Locke predict rain?
What was in that wacky paste he put on Boone's head?
Who ran him over, injuring him?
Why was that 2000 poster stuck on the file cabinet (with black tape) in Michael's hospital room, when it was 1996 when Michael broke his leg?
Why were Jack, Kate, Sawyer, and Hurley on "the list"?
Why did the Others take Michael's blood?
How did Eko end up in Australia and why was he going to America?
Was Eko really on flight 815 or did he just run out into the water after the crash? He was most definitely on the flight, as we saw in ?
Was Charlotte telling Eko the truth at the airport or was she doing as told by her "psychic" father?
Who conned Sawyer's parents? In other words, who is the original Sawyer?
Did she have an affair?
Who is the baby's father?
What is Vincent's true role and why does he seem to be in places right before/after something of importance occurs?
When Jack, Kate, and Charlie are going for the cockpit, why did Vincent just sit there in the bushes watching them? Wouldn't a normal dog go greet them?
Does Walt have powers over nature as has been implied?
Where is Walt? We know he is with Miss Klugh, but don't know exactly where they are holding him.
Why did Walt appear soaking wet and speak in reverse? Is this related to Ms. Klugh's question about Walt appearing where he doesn't belong?
What sort of tests did Ms. Klugh and her gang have Walt perform?
What happened to the children and "good" people taken from the tailies?