You can acquire the Skeleton Key through the console command player.additem 0003a070 1.
Source: Elder Scrolls Wiki page "Skeleton Key (Skyrim)"
You can't without mods.
Skyrim for Pimps - 2011 Quest for the Skeleton Horse 3-5 was released on: USA: 24 August 2012
0003a070
No. Dragonborn needs Skyrim to run
You can't but you can get the Skeleton Key as part of Thieves Guild quests which is a unbreakable lockpick!
I don't believe you can summon a skeleton out of thin air like an atronach or familiar, but if there is a dead skeleton, you can use the Raise Zombie or Reanimate Corpse spells, and it will revive and fight for you.
If your version of Skyrim is for the Xbox 360 or the Ps3, this is not possible. Although, it is possible to mod it otherwise, with a USB flashdrive. hope this helped. :D
As long as you want. Keep in mind you can't complete the quest without handing it over so level up lockpicking first.
You can't have any children in Skyrim without the Hearthstone DLC or installing mods.
No. When you have completed the quests, there is no way of getting it back!
Marriage isn't possible in Oblivion, only in Skyrim.
as long as you have 2gb of ram, which is how much Bethesda have restricted Skyrim to use on any computer ( without the use of a mod), you should be able to run Skyrim, mediocrely