Okay, I see what u mean.. in fact that's not that hard :
For the last example with the text flashing up :
You create severals 'text media' that u put one after the other (right click and then 'insert text media') where u write your 'preSents' etc then u shorten the text media to sync it with the song. You can also make them 'fade'
If u want every text media in a different place, click on the 'Event Pan/Crop..' of each (that is on ur text media) and u'll can rotate it, change the width etc..
As for the video flashing up like in the third clip :
You've got your little clip that u wanna sync.. you just have to cut it into severals pieces : you shorten it then re-add the clip you just shortened, you shorten another moment of that clip etc.. (yeah I know that's boring) and then it's just like I said with the text media. Same goes for the pix, he puts some images through the 'cut clip' (where u see the road) at 50'
In the first clip at the beggining, he just cut his differents clip very shortly and add it one after the other, if you've got a video and want it to appear like an image : right click on the clip > 'Insert / remove envelope' > 'velocity'