For the voice, it sounds like you VoiceOver turned 'on' - try triple-clicking the home button and see if that turns it off, and if it does then you can change what a triple-click does via Settings > General > Accessibility > Triple-Click Home.
If it doesn't turn it off then you will need to touch/tap the field that you want to use/select and it should get a box around it ; then double-tap that field to activate/type it. So you can use that 'touch to select, double-tap to activate' process to gradually get into Settings > General > Accessibility > VoiceOver and turn it off.
The iPad's manual also says that you should be able to switch voice-over off by connecting to your computer's iTunes :
Turn VoiceOver on or off in iTunes: Select iPad in the iTunes sidebar. In the Options section of the Summary pane, click Configure Universal Access. Select VoiceOver, then click OK.
So select Configure Universal Access at the bottom of the Summary tab and set Seeing to Neither
By 'roll' do you mean that the iPad's screen doesn't rotate when you turn the iPad ? If so then is there a lock symbol at the top of the screen next to the battery indicator ? If there is, then depending on what you've got Settings > General > Use Side Switch To set to (rotation lock or mute notifications), then you can lock/unlock the rotation by the switch on the right hand side of the iPad, or via the taskbar : double-click the home button; slide from the left; and it's the icon far left; press home again to exit the taskbar. The function that isn't on the side switch is set via the taskbar instead : http://support.apple.com/kb/HT4085
If there isn't a lock symbol then try a reset : press and hold both the sleep and home buttons for about 10 to 15 seconds (ignore the red slider), after which the Apple logo should appear - you won't lose any content, it's the iPad equivalent of a reboot.