The following evaluations are for windows based machines. If you have a Mac OS X, you can run the evaluations by using Boot Camp or Paralells.
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Brain Speed Test
One important measure of how well your brain is doing is related to its speed of processing. Take this test to see how your brain speed compares.
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Word List Recall
This simple test is similar to one that is on many cognitive batteries. See how well you remember a list of words you see!
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Speech in Noise
Can you hear and understand conversation in a noisy environment? Take this test to measure your ability.
Source: BrainFitness Channel