Why do Dutch people say “I have sawdust in my head” when they do something stupid? Can you distinguish between people who are visual or auditory learners? Can brain implants read and control our minds? What is already known about long covid and the brain? How heavy was Einstein’s brain? Does the size of your brain say anything about intelligence? Can you unlearn sleeping in the dark? What is the purpose of brain research? How is it possible that we can hear either ‘green needle’ or ‘brainstorm’ whilst the audio fragment remains the same? What is the ‘brain freeze’ sensation when eating or drinking something cold? Which brain region is the most important?