What are the charts routes of failing and passing the bot tests?

I have took the two part tests of the terminal to check that I'm not a bot for creating new account.
I passed the test and I took it again to see if there is any way to fail at it.
Out of curiosity, to see if there is an actual option to fail at this, I choose the most ridiculous answers I though will be forced me to fail, but somehow I passed the test again...
And on the other hand, my friend took those tests and fail on his first time (maybe I should have doubted his humanity).
What I want to know is the possibilities charts of passing/failing the test.
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