Who crowned Charlemagne as Emperor in 800 CE?

Pope Leo III

Who were the female spirits that punished crimes of moral wrongdoing, especially murder against family members? Which pop group is known for the hit "Wannabe" in the '90s? Which animal famously inflates air sacs in its chest to produce loud, booming courtship sounds? What’s the only mammal capable of sustained flight? Which European country has a region called the Algarve?