Many these questions were asked long ago and got no answers. I think they can be answered on Quant Stack. Migrate them there?
For most questions this won't be possible, since their older than 60 days and cannot be migrated, as this footnote to the FAQ on migration says:
1 After 60 days, migrations can only be performed by Stack Exchange employees. These are performed only in very, very rare procedural cases and are usually not done on request.