I had an interesting experience with these 'trick questions' doing the Creditkarma signup - I was asked four questions, three of which were fakes ('none of the above'), only the last question was legitimate. Either that's a random edge case, or a very sneaky intentional design...
Barclays' "3D Secure" asks two questions when verifying an online purchase and I can only recall a single occasion when one wasn't 'none of the above'.
It does ask for your sort code as a third question though, that's a one in four chance if you were picking randomly.
