I found this post that takes apart Encyclopedia Brown and points out 10 ridiculous mysteries he solved. Check it out here.
A few quotes:
And even the few children who can tell the Civil War from the American Revolution certainly don't display an Apu-like knowledge of its major motives, battles, and dates.[...]
Would you really try to challenge a group of isolated strangers who have just proven that they can slaughter and cook a goose, and then lie to innocent children about it? Is that not the worst real-life Deliverance red-flag imaginable?[...]
To solve this one, a child would have to either be a bird-watcher (unlikely) or inclined to wake up before sunrise (impossible).[...]