Since my last post above, I have also read that there are some simple things we can do to train our mind to be more effective at these sort of tests:
1) Read, anything you can get your hands on and do it a lot. Preferably read quality material that will get the brain going, not trashy stuff and picture magazines don't count!
2) Crossword puzzles.
3) Number puzzles, such as sudoku etc.
4) Go to TAFE or where ever and do a short course, something you'll be interested in that will stir the mind.
I have been doing all of the above and enjoying it.
Has anyone got some more hints to add?
Cheers all.