question: What is the answer: What intangible communication aid did Dr Ludwig Zamenhof create c.1880, 'to foster harmony between people of different nations'?
answer: esperanto

question: What is the answer: Held annually since 1923 which is the oldest active endurance race for sports cars?
answer: 24 hours of le mans

question: What is the answer: What fictional family has a gigantic, ominous butler named Lurch?
answer: addams family

question: What is the answer: According to legend, which Greek philosopher slept in a tub?
answer:
diogenes