Any questions? We've got the answers right here in a book that will take parents off the hook with their children: TIME For Kids BIG Book of Why answers the questions that kids commonly ask and adults can rarely answer. Why do we have eyebrows? What's a black hole and what happens if you fall into one? What's the fastest a human is capable of running? Why do wet fi ngers stick to metal in the freezer? Where is the deepest point on Earth? Divided by...