Sibling Dynamics: Why Little Brothers Can Be Annoying

Today, 10 questions with one answer in common: "That's a good question!" We've picked 10 stumpers, like: Why don't we suffocate in cars when we're driving? How do we know where our mouths are? Why are there more boys than girls in books? Do monkeys every touch the ground? Why don't fish get electrocuted when lightning strikes? Where does the sidewalk end?

Our experts include naturalists Mary Holland, author Grace Lin, primatologist Sofia Carrara, pediatrician Laurie Racha, Dan Goodman of AAA of Northern New England, and the poetry of Shel Silverstein.