Question two is 30, 33, not 90, 93.
Incorroect. It is 90, 93
6,9,18,21,42,45,??,??
The pattern is that to get an odd index you multiple by 2 the previous number. To get an even index you add 3 to the previous number
So therefore the ??? after 45 is index 7 which is odd so you multiple 45 with 2 and you get 90. The next index 8 which is even so you add 3 to the 90 and get 93.
This test measures actual knowledge, which shouldn't have anything to do with IQ.
Of the 10 questions 4 were sequences to see if you see the pattern that weren't really dependent on knowledge with the possible exeption of the question that asked "B,E,?,Q,Z " but in that case I all have to know is the order of the alphabet starting with letter A so that is very minimal knowledge.