Yes, as a US permanent resident, you can travel to Canada.
Yes, a US permanent resident needs an Electronic Travel Authorization (eTA) to visit Canada.
Yes, but you have to have your passport
Yes, permanent residents of Canada can travel to Canada with a valid Permanent Resident Card or Permanent Resident Travel Document.
Yes, a US permanent resident can work in Canada with the appropriate work permit or visa.
Yes, an American permanent resident can travel to Canada with a valid passport and may also need to obtain an Electronic Travel Authorization (eTA) depending on their country of citizenship.
Yes, a US permanent resident can travel to Japan. They will need to obtain a visa before traveling to Japan.
Yes if you have a Permanent Resident card; however, if you do not have a Permanent Resident card you would need to apply for a visa in advance.
You have to be a resident of Canada in order to get a license in Canada.
Yes if you have a passport
Yes
Yes, as a permanent resident with a green card, you can travel to Canada. However, you may need to obtain an Electronic Travel Authorization (eTA) before your trip.