The Kathy and Bert mocks are harder than the real exam. The sun example questions are very much like the real exam quesitions. I have not taken the sun example questions myself but i have seen a few of them. Whizlabs is supposed to be tougher than the real exam i think.
John - Two questions regarding the exam questions - the puzzles in the K&B book are extremely hard. To what extent are puzzles employed in the real exam and how hard are they? I don't recall puzzles (or at least, challenging ones) in the Sun problems and I went through all 210 problems.
The real exam questions are not that hard when compared to the self test or mock exam questions from the book. I dont know where puzzles would come into the equation. Are you referring to the self test questions as puzzles ? Or the quizzes in the master exam software ? I didnt go through the quizzes in the master exam software. The only mock exams that i took were the mocks that came with the book. They were good and they prepared me for the real thing. Good luck with your exam.
I don't think you need to worry about the "puzzles" such as these in the actual exam. I think Bert and Kathy gave themselves a high five when they came up with this! Sashi