IQ tests are only good to tell you how successful your kid will be at school. IQs very rarely change after the age of 4. Even specialists, it can take years to increase of a mere ten points if your kid is older than 4-5 years old. If you got low IQ, you're probably screwed for the rest of your life.
As for the headline, what the hell is that? Well, yeah, you got a kid that is really, really clever for his age. What's so astonishing about that?
EDIT: I got 138 on the test. But, the younger you are, the higher a lame test like that one will give you.
This is not a serious IQ test by any means.