Hi guys, I came across some questions which I cannot figure out on my own. Does anyone know the asnwers to these?

1) Reasons a Salesforce Admin cannot share a report folder? 

2) How to ensure that opportunities are not double counted in a pipeline for the same end customer when using multiple resellers?

3) How to convert all existing country fields to ISO code? Is that done through Data.com clean or mass update addresses?

4) What happens to the associated license when an account get decatived? The license simply gets listed as Inactive and the Admin has to remove them from the billable licenses in order to stop paying for that license, right?

Thank you and happy studying :)