What was the name of Twitter's looping video app, discontinued in 2016?
Question 7
In 1966, German aristocrat Claus von Amsberg married which Dutch Crown Princess?
Question 8
What is the capital of the US state of California?
Question 9
F Scott Fitzgerald had a cat named for this Polish composer, who in turn supposedly wrote Waltz #4 in F Major after a cat walked across his piano keys. Who?