They are highly intelligent and often their disobedience is not because they don't understand what you require but rather because they just don't want to do what you are asking. They are strong willed and can be quite insolent, simply disregarding their owners. On the other hand, if your Siberian respects you it can be quite cooperative. No, they are generally light eaters. A good quality commercial dog food will provide a perfectly satisfactory diet for your Siberian.
Good fences are essential.
Siberians are running dogs and will start out at the slightest opportunity. It can be really nerve racking scouring the local animal shelters looking for your dog. You may never find it so the best solution is to stop the problem before it starts. His first dash outside may well be his last because of traffic. No, people often make the mistake of taking their dog to a park and releasing it from the leash only to watch it disappear over the horizon.