To be honest with you I am not sure that practice will make you any better at these kind of tests but that is a whole other subject!
I believe that the two tests that you have mentioned will be included along with a test that will involve you visualising a cube that is laid out flat and what sides will touch etc.
If I remember rightly there are examples of these tests sent along with the motivation paper?
Again though, in my view I dont think that practicing these will help you out that much, I dont think there is really much you can do to prepare for these tests apart from getting a good nights sleep etc. I would suggest you concentrate on the content from the motivation paper.