Rerere no Tensai Bakabon (1999)

This story contains a lot of humor and edgy jokes that attract an audience ranging from toddlers to adults. Bakabon and his father turn common sense on its head. After all, common sense, that we take for granted, is frequently nonsensical, but comical. Bakabon's father has his own philosophy and he leaves no stone unturned in his quest for answers. Bakabon joins him in his philosophical quests which drive the people in their town crazy. (Source: pierrot.jp)