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 is a neuron made?  Are emotions experienced in the heart or the brain? Do colours appear the same to everyone? Why is some information stored so quickly in the brain, while other information takes much longer? Can a brain scan show whether people are already producing their language response while their conversation partner is still speaking? Do the male and female brain differ? Are computers smarter than humans? What effect does cyanide have on the brain?