Yes when the Battery is Dead
You can charge your iPad either way - it doesn't need to be on or off. However, the most effective way is to charge your iPad when it's off. It will charge much faster.
It can charge on both. To charge on the wall you need to use the USB power adapter that comes bundled with the iPad
It comes with one but you need a USB cord to use it. Yeah, it has an original iPad charger. You can use it charge your iPad in the office or home. But, if you want to charge your iPad while driving, you need an iPad car charger. You can get it from online.
try getting a new charger
No you dont need a data plan unless you get the 3G iPad.
Some of them should be able to! What you're looking for is the built in USB port which you can charge an iPad off of.
yes you can :)
Yes it should be charged, at about 20%. I charge it approx. every 2 day. Once a month completely drain the battery and charge.
No. The iPad requires much higher wattage than an iPod or iPhone. While the two smaller devices might fit on the dock, it is not recommended that the dock be used to charge anything other than the iPad and iPad accessories.
it's name is the new ipad
This will be marked on the label on the iPad and its original charger.
You can't