Yes, they were answered on the show itself. If not directly, implied by the dialogue and script. I'll have to go through the video and give the answers when I'm not playing video games 
Just an example though. One of the questions was "How was Christian Shepherd able to appear in x number of places?" and the answer was in the show...the Man in Black is able to take the form of any dead person, and told Jack that he became his father to lead him to water...
Just an example though. One of the questions was "How was Christian Shepherd able to appear in x number of places?" and the answer was in the show...the Man in Black is able to take the form of any dead person, and told Jack that he became his father to lead him to water...
