The most difficult anthems riddles

The Marcha Real ("Royal March") has no official lyrics. The national anthem has been played without words since 1978, when the lyrics that had been approved by General Francisco Franco were abandoned

The anthem of Switzerland has a separate text in each of the country's four official languages.

“The Star-Spangled Banner” is the national anthem of the United States. By the time the song officially became the country's anthem in 1931, it had been one of America's most popular patriotic tunes for more than a century. Key was inspired by the large U.S. flag, with 15 stars and 15 stripes, known as the Star-Spangled Banner, flying triumphantly above the fort during the U.S. victory.

The song, which was once a radio hit, is sung by Liverpool Football Club supporters moments before the start of each home game. The words "You'll Never Walk Alone" also feature in the club crest and on the Shankly Gate entrance to Anfield, the home stadium. It is probably most widely known football club anthem in the world, adopted later by other teams (Celtic, Feyenoord, Borussia Dortmund).