Every child wants to be a "comeback kid"-and that cherished goal is within reach with these hundreds of smart-alecky answers to the stupid questions youngsters hear at home, in school, or from friends. So what if science class is so dull that it causes students to zone out? There's no need to apologize to the teacher who asks, "Why are you always daydreaming?" Just say: I'm trying to come up with a formula to make homework disappear . Maybe Mom has...