What happens in the brain when you feel ‘confused’? Are there people or animals with more or fewer than two brain hemispheres? Why do Dutch people say “I have sawdust in my head” when they do something stupid? How heavy was Einstein’s brain? Does the size of your brain say anything about intelligence? What is already known about long covid and the brain? How does speaking multiple languages impact the brain? Which brain region is the most important? Can you distinguish between people who are visual or auditory learners? Is it true that you can be ‘left-brained’ or ‘right-brained’? What goes wrong in the brain when I lose focus?