IQ Tests: Part Two

Do people confuse your IQ with your shoe size? Then it's time to build some mental muscles. These are the sites that will boost your brain power!

1) Mind Tools
Tips for improving memory, problem solving, communication skills and lots more - all for free. The Memory section is superb, with strategies for learning lists, names and languages. You'll be Derren Brown in no time.

2) Academic Tips
Free advice includes improving your concentration and motivation, speed-reading and thinking critically - which, frankly, is a hinderance in some of these IQ tests.

3) Right Brain Workouts
Got writer's block or lost your motivation? Click here for a wealth if free exercises to get that imagination humming.

4) The Mind Gym
A fantastic resource for developing mental, social and creative skills. Full access costs £10 per month or £100 per year.

5) Learn to Learn
Tips on studying, man-management and creativity - stuff we're wrongly expected to be born with. 'There are many different kinds of intelligence.' it says, rightly.

6) Happy Neuron
Credible web-based program that insists we can improve brain performance at any age. Free seven-day trial; $12.99 per month.

7) How to solve Sudoku
Practice, practice, practice. Unless you're Stephen Hawking, it's the only way to get any good.