When did the Sydney Opera House officially open its doors to the public?

More Questions:

At a military funeral, the American flag is folded how many times?

How many white stripes are there on the American flag?

Which US boxer was known as "The Manessa Mauler"?

Which drug was first extracted from the bark of the cinchona tree?

What kind of a doll grabs Robbie and drags him under his bed in the 1982 film "Poltergeist"?

What two words were tattooed on Robert Mitchum's knuckles in "The Night of the Hunter"?

What TV show's eateries include The Brick tavern and Roslyn's Cafe?

In "Back to the Future', when Marty goes back in time, what does his mother think his first name is?

The Supreme Court decision that legalized abortion in the US was referred to by what case name?

When did the Sydney Opera House officially open its doors to the public?

Who took her last swim from a boat named "Splendour" in 1981?

What is the atomic number for Palladium?

In which book does Flora refers to Mr. Meyerburg as Mr. Mybug?

In the music video "Opposites Attract", what is the name of the cat Paula Abdul dances with?

Which Oscar-winning actor's only film as a director was the 1961 western "One-Eyed Jacks"?