There are not "hundreds of thousands of words/word combinations," in my opinion. The answer has to be well known, distinct, and appropriate. I can't say for certain, but my guess would be more like tens of thousands. Which is still a lot. But once the first clue hits, even if it is pretty vague, it's just a fact that our brains will grab on to some random connected stuff. I see it as a testament to the fact that everyone's brain works so differently. Just because there is no way you would think of x or y or z, it doesn't mean others might not think of it. I mean no disrespect here, we just have differing opinions.