It depends how you would like to go through it. You can try testing your own knowledge or you can test your searching ability. In any case if you see a bad question which does not belong in the endless quiz you should see a link to report the question and then it will be sent in for review.
I was looking at the endless quiz and I wasn't doing very well at all. Then the question about National Chess Day and I realized I could quickly find the answer to that on the web. After that the quiz was a little funner, for me at least, because it became a challenge to find the answers on the net
(until a question that said who is this player and no picture came up
)
So the question occurs to me is the endless quiz really just a test of our net search prowess?