lol, i caught that instantly. 3 3 6 9 15 is a modified Fibonacci sequence
hahahahaha! Oh man, you like to complicate things, don't you?
Good IQ test should never require such an advanced math knowledge! The next is obviously 24.
I get really intrigued by the whole idea of which types have high IQ. My guess was intuition should be high on that scale. Especially Ne. The most intelligent human in the world is an ENTP - Marilyn vos Savant. I wonder if T/F matters (it's decision making, nothing more, but should intelligent people trust logic more??). I'd also say that Perceiving types probably have it easier during the test - since they like crisis situations and the good test is: many questions, little time.
And as for MENSA from what I've observed it consists mainly of INTPs, INTJs and ENTPs. The NFs (myself!) get bored on their meetings (all these logical riddles...

) and usually do not become regular members (I passed their test with >158 IQ, meaning I got every answer right, so they don't know how high it is

I have a certificate, but am not a member.)
We should make some wicked pool here.

Like, make 16 threads and each type should choose their IQ.
