18historyThe Pony Express mail service, established in 1860, could carry mail by horseback 2,000 miles in 10 days. What were the easternmost and westernmost states of this rapid mail service?Show AnswerShare
18mathematicsIf you add the numerical value of all seven Roman numerals, what is the sum?Show AnswerShare
18otherEnormously popular in Japan, these virtual reality pets have been adopted by children, teens, and adults of both sexes, and recently invaded the United States. What are they called?Show AnswerShare
18otherMost people have 20 of these, but in 1921 a boy born in England had 29 of them. What were they?Show AnswerShare
18moviesWhich 19th-century American publisher compiled the first standard reference work for quotations?Show AnswerShare
18current eventsIn which year did East and West Germany unify into the current Germany?Show AnswerShare
18sportsThe modern rules of which sport were drawn up at Cambridge University in 1848?Show AnswerShare
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