what are those and where do i take them

You gotta goto a school on toribash.

It depends.
Which ones are you talking about?
You can do most of them on certain channels on IRC.

I have never heard of graduation tests but I think you can find them on the IRC

i mean ALL of them ; i saw in tha achievments

video graduation
art graduation
etc

sry, but whut tha fu is IRC?! (shame on me -.-)

Internet relay chat. It is a good way to have a quick chat. Click on 'Help' tab up there and click on connect. It will join you to the #support channel of toribash IRC. You may want to get an IRC client if you find irc interesting. There are lots of irc clients but the one I recommend is Nettalk. Google it.