Problem: What was the world's tallest building in 1950?
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A: empire state building

Q: Which 'Pet Shop Boys' song went to number one for two weeks in January 1988?
A: always on my mind

Problem: In a medical breakthrough in 1901, who was the first to classify A, B, O blood groups?
Answer: karl landsteiner

Q: Who was Fred Astaire's female leading lady in the 1957 film 'Silk Stockings'?
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A: cyd charisse

Q: What is the capital of Serbia?
What is the answer?

A: belgrade

Problem: Which comedy actress featured in The Pet Shop Boy's first film
Answer:
windsor