"Could I swim in ice cream?" "What's the opposite of a spider?" "Why can't I tickle myself?" "Are cats liquid or solid?" Good questions all, and they're among dozens given serious consideration in The Bedtime Book of Incredible Questions. As Isabel Thomas (Moth) explains, the book is dedicated to the idea that "science is about asking questions" and "each one is a stepping stone on the path to understanding the universe and everything in it." Thomas's answers are informed by scientific research and illustrated with equally finespun art by Aaron Cushley (J.R.R. Tolkien) that teems with children and animals hot on the trail of knowledge. There are also images of curiosities like, say, two terrified-looking flowers riding a skateboard down a ramp ("Do plants have feelings?"). --Nell Beram, freelance writer and YA author