Regardless of moral implication and/or trolling, here's another way to see why doing this makes you a stupid person.
Between 11 people and 3 weeks, you took the math gre. Estimating 10 hours a week gives a total of 330 man-hours to take the test. Other test takers were given 2.5. So, you performed the test in at least 100 times as many man-hours as other test takers.
Then, if you scored in the 99th percentile, each of you, on average, has a math ability greater than 1/100th of 98% of the population and less than 1/100th of 2% of the population.
If math ability were directly related to IQ, you would have an average IQ of < 2. So you should be very very proud, because the fact that you can use a computer is quite impressive. You are very *special*.
Even if you only spent about 30min each on the six problems. You would have used 11*.5 + 2.5 = 8 man-hours = ~3 times the allowed time. Giving you an IQ of < 50. Still too dumb!