yes you can because there are revs and other stuff
Yes, a non-member can go to the Wilderness, encounter a revenant, and get himself killed.
they are in the wilderness 30 something mine, the area south of the crafting guild, and the dungeon with the hill giants.
an easy way to get there is to go to the grande exchange entrance from there head west till you see the two guards above the weat field go through them carry on heading north and there will be a broken low wall separating non wilderness from wilderness so climb it and your there.
Combat stuff's, you can get get those from Fist of Guthix. Fist of Guthix is in the Wilderness close to level 5-8.
No, only members can have pets.
Yes, non-member items can be used on members servers.
You walk around in a non pvp world for around 10-20 minutes
You can, you are probably just on a quick-chat world, simply just change to a non-quick-chat world to fix this.
look for a duel tournement (members or non-members) specicfic world
you could play "Warcraft" you have to buy it frist
Go on your Map and look at the Icon and Click on it and it will Highlight where Plateshops are
you cant