The very kind of "puzzle" book I like least, in fact dislike intensely because it is misbranded and mislabeled. Very very few of the entries herein are actually puzzles, the vast majority are little tricks and wonder claims. Cute and all, just not what I wanted and not what I expected grabbing a book called The Worlds best Puzzles out of a street library. It's going back in ;-).
Of course if you're after a book full of interesting little tricks and quirks and gotchas, this has them in spades.