With so many people arguing over what Mysteries will and Won't be solved i think it's time to list all things not answered on Lost and not just the Mysteries.
I know the mysteries portal on this site sort of covesr this already but there are still so many things people think aren't completly solved or have been forgotten about or think will never be explained or isen't a mystery but is still unexplaned.
So if you have a theory over how the things will or won't turn out, if you know of a plot hole or loose end you want to share, or you want to prove some idiot's theory wrong then use all information, from hard fact to foreshadowing, to put it all together.
P.S Unforuntaly you can't use information given in interviews, podcasts, or promos that havent come to pass to prove your theory right or someone elses wrong. Sorry.