At max 2 months and minimum 1 month

Both categories are being applied for Greece visas, you can choose between plans for single entry or multiple entries

Yes, you have to do this process because your visa will be checked on different platforms and by different officers in paperback form.

You can visit various destinations in Greece where visitors can capture its beauty such as attractions in sports, tech industries, and grand canyons. You can try various foods and items which are being sold locally. For foreign visits to various destinations, you must have your visa with you. Other related things such as being safe from scammers and people who sell fake products to foreigners.