Hmmm

I noticed one error. The sum of the primes 1-7 is 1+2+3+5+7=18, but that wasn't an option!

I had to guess for the anagram.

Most of these took only a few seconds and were extremely easy. I'm figuring that the scores are inflated a bit.

Besides which, these sorts of tests really only measure how good you are at taking these sorts of tests.