Is the brain more or less active during sleep? Are there people or animals with more or fewer than two brain hemispheres? Why is some information stored so quickly in the brain, while other information takes much longer? How is a neuron made?  Does a 14T MRI scanner make more noise than a 3T MRI scanner? How does our breathing influence how we think and feel? Can you unlearn sleeping in the dark? Why do Dutch people say “I have sawdust in my head” when they do something stupid? Why do people still receive electroshock therapy? Can I learn from a text by listening to it while I sleep?