Wiping Your iDevice & Adobe Flash

How do i clear my iPhone to sell it?

Whether your giving your iPad to your spouse or selling your iPhone, be sure you completely wipe all of the data and settings from it before giving it up.

Wiping the data is easy! Tap Settings > General > Reset > Erase All Contents and Settings.

How do I get Adobe Flash on my iPad?

You won't. Ever. Apple (and Steve Jobs) don't like Flash for numerous reasons and their refusal to allow Flash on the iPhone and iPad helped fuel the popularity of HTML5, a safer, more powerful Flash substitute. In a nutshell, Flash is an outdated web technology that was built for PC's way before the mobile era existed. Many popular Flash-based websites have been re-written in HTML5 or other mobile-friendly alternatives over the past few years. If not, well, there's no substitute so you'll have to view that website on your deskotp.
Read more on Steve Job's thoughts about Flash.