"Why did the robber wash his clothes before he ran away with the loot?" ("He wanted to make a clean getaway.") "What is a baby's favorite reptile?" ("A rattlesnake.") "What is a duck on the Fourth of July?" ("A firequacker.") Youngsters just learning how to tell jokes will delight in this collection of family-friendly gut-busters—including an entire chapter of knock-knock jokes! And while, yes, adults may groan at the admittedly corny cracks, we dare you to keep a straight face when your favorite kiddos dissolve into giggles. For ages 7 and up.