In which 1976 Best Picture winner does the title boxer gulp raw eggs and punch sides of beef in a meat locker?

On laundry care labels, a crossed-out triangle, sometimes shown with the letters "Cl," warns you not to use what? Tales by which German Romantic author inspired many operas, including Busoni's "Die Brautwahl"? Cephalopod arms bear which gripping structures, whose name is also slang for the gullible customers P.T. Barnum suppose… Legend says the tiered steeple of Christopher Wren's St. Bride's Church in London inspired which festive item? The title of which TV show refers to the notice that tells a spy he has been cut loose by his agency? The "To Serve Man" episode of which classic TV series involved aliens with a taste for humans? The Tonkinese cat breed is a cross between the Burmese and which other breed? Along with the sailfish and tiger shark, the bluefin variety of which food fish ranks among the fastest in the sea?