Richie's dad sends him on fake treasure hunts for April Fools day.; Richie and Reggie become trapped in a museum with art thieves.; The art thieves turn out to be workers that are supposed to be moving the paintings.; Richie's father gives him an amusement park for getting a straight "A" report card.; Dot enters a skiing contest.; Richie gets stuck watching Gloria's doll while she shops.; Lotta looks for the end of the rainbow.; Richie's homework machine plays hooky.; Richie's mom tries to transport her jewels by boat.; Lotta pretends to faint to get a waiter's attention.; At a baseball game, when the hot dog vendor catches a foul ball, Lotta catches his hot dogs.; Grandpa won't wake up until he hears that dinner is ready.; Reggie's electric blanket gets a little too hot.; A misunderstanding causes Lotta to get into a fight.; Richie's jack-in-the-box knocks out a couple of crooks.; Reggie's pie-throwing statue backfires.; Lotta and Gerald play tic-tac-toe in the snow.