Is the brain more or less active during sleep? What is the impact of speaking multiple languages on the brain? How does your brain know that you want to move? How are memories made in the brain? How does personality arise? And does it change over the course of your life? Do we only use 10% of our brain? Why do some people remember their dreams and others do not? How heavy was Einstein’s brain? Does the size of your brain say anything about intelligence? Why is sleep so essential? How is it possible that we can hear either ‘green needle’ or ‘brainstorm’ whilst the audio fragment remains the same?