What is the average number of letters in us cities?

Why are wind turbines being built in antarctica? Which is the best way to gamble on cricket in pakistan? What is it called when residential live outside a city? How long does it take a standard letter from los angeles to New York? Florida city beginning with S? How did colonialism in South Africa affect race relations in that country What are the three concepts? What time zone is Springfield Missouri? What obstacle does the akashi kaikyo bridge cross? How many kids did santa Anna have? Where did the name Brooklyn come from? Where is Camp Shelby located? How big are the Scottish Highlands? How long to boil an egg for devilled eggs in Calgary? What did the germans do after they succesfully invaded denmark and norway? Who or what is Santa Barbara named after? British imperalistin Persia and Afghanistan were challenged by? What vines do well in southern California? After the colony of New Amsterdam was established on Manhattan Island in 1626 which colonial action led to conflicts between the Dutch and Native American tribes? Why were the foreigners who gained control of china during the Qing dynasty successful? What is North of Santiago?