Why do children outperform adults in the game of ‘concentration’? How do brain cells communicate with each other? What is the impact of speaking multiple languages on the brain? Are there people or animals with more or fewer than two brain hemispheres? How does speaking multiple languages impact the brain? Do colours appear the same to everyone? Can I learn from a text by listening to it while I sleep?  Why do some people remember things better than other people? Can you feel pain in your brain? Why are you grumpy after a bad night of sleep?