Why do Dutch people say “I have sawdust in my head” when they do something stupid? Is the brain more or less active during sleep? Does a 14T MRI scanner make more noise than a 3T MRI scanner? Why do brain tissues have different colours? Can I learn from a text by listening to it while I sleep?  Did the gigantic dinosaurs also have gigantic brains and a gigantic number of neurons? How can I find out which stage of cognitive decline I am in, and how can I prevent Alzheimer’s disease or dementia? How does stress affect your brain? Can you feel pain in your brain? How does personality arise? And does it change over the course of your life?