forsberg isn't even smart enough to cheat very effectively. Within a couple minutes searching around the web, I was able to find the complete answer key to the the IQ test that forsberg used. Just to be sure, I began the test a bunch of times myself to confirm that it uses the same questions every time. Sure enough, it does. Here is a screenshot for proof which you can compare with the online answer key.

I also found out that this particular test maxes out of a score of 144. That means that, even when copying straight from the answer key, forsberg still managed to miss a question.