Yes, via virtualisation, its fairly simple, try this guide on how to do it: techentry.wordpress.com
You can't install XCode or its SDK on the windows. All you can is create a virtual machine, install Mac OS X there and then install XCode and SDK.
No. As of now you can only run and use Xcode on Mac computers. Even though you go to the process of waiting 4 hours for it to download, when it is complete you can't do anything with it on a Windows computer.
No you can not get xcode on any windows operating system i heard (even thought this may be in correct) that only MAC OS X users can get this.
You can use programs such as eclipse, rhostudio, if you have windows. If you have mac you can use eclipse, rhostudio and xcode. Check the links.
Yes C or C++, although the programing environment is unlike the Mac and Xcode because of the interface. On Mac it is much easier, but still takes skill.
No, you can't, only Mac OS X and iOS programs.
XCode for will work on any standard MacBook Pro no upgrading is required. If the Mac is running Lion (OS X 10.7) it will need XCode 4.1.
Xcode is a development software package created specifically for Apple/Mac related applications. You will to use a package like Eclipse for the Android platform
Xcode is made by apple its a developing app for programmers so the answer is yes
Use Xcode. See related links below.
From Xcode, having safely saved all your source files, you Build an application by clicking the Build button in your Xcode toolbar or pressing the Command and B keys if you do not have a Build button.
shipped with OS X