Leave it to Alvin Schwartz to go a good riddle one better in his title entry: ""Ten copycats [pictured as cats were sitting in a boat and one jumped out. How many were left? None. They were all copycats."" There are 27 more crack riddles here, and if it's hard to get through childhood without having heard most of them, that's only because they are too good to die. Kids can't do better than to hear them first from Schwartz. In the background, Simont comes through with the requisite animation, but not much flavor.