The Most Honest Search Engine

I know that our website has roughly 2000 webpages. But search engines seem to narrate a different story.

MSN search engine says 1200 webpages while Yahoo says 1900 webpages [very close]. On the other hand, Google claims to index 17000 webpages of this site. Where did Google find those extra 15000 pages which I know for sure that they do not exist on this site.

I think Yahoo is the most honest of the lot. It's also the best search engine for finding fresh content. But when it comes to sending traffic, Google rules.