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Question 1: Why did The Beatles stop touring in 1966?
Question 2: In which novel does Tris Prior, the protagonist, live in a dystopian society where the population is divided into five factions?
"Divergent" is the first novel in a trilogy written by Veronica Roth. Tris Prior, the protagonist, lives in a post-apocalyptic society divided into five factions based on human virtues. Tris discovers she's "divergent", meaning she doesn't fit into one particular group.
Question 3: What is the name of Beethoven's only opera?
Fidelio, originally titled Leonore, is the only opera composed by Ludwig van Beethoven. It premiered in 1805 and underwent two major revisions before reaching its final version in 1814. The opera tells the story of Leonore, who disguises herself as a prison guard named "Fidelio" to rescue her husband Florestan from political imprisonment.
Question 4: Who designed the famous Guggenheim Museum in Bilbao, Spain?
The Guggenheim Museum Bilbao, which opened in 1997, was designed by Canadian-American architect Frank Gehry. The museum's distinctive curvy titanium-clad exterior has made it one of the most iconic buildings of the 20th century and a prime example of deconstructivist architecture.
Question 5: What celestial event occurs when the moon passes directly between the Earth and the sun, obscuring all or part of the image of the sun for a viewer on Earth?
A solar eclipse happens when the new moon moves between the Earth and the sun. There are three types of solar eclipses: total, partial, and annular. During a total solar eclipse, the moon completely covers the sun, as seen from Earth. Solar eclipses can only occur during a new moon and in the narrow path on Earth's surface where the moon's shadow falls.
Question 6: If a mineral scratches glass but is scratched by a quartz, what is its likely hardness on the Mohs scale?
The Mohs scale measures the hardness of minerals. A mineral that can scratch glass (hardness of 5.5 on the Mohs scale) but is scratched by quartz (hardness of 7 on the Mohs scale) is likely to be around 6 on the Mohs scale.
Question 7: Which fashion designer is known for the creation of the "Little Black Dress"?
Coco Chanel revolutionized women's fashion and introduced the "Little Black Dress" in the 1920s. It was intended to be a versatile, affordable, and accessible fashion staple that would be 'a sort of uniform for all women of taste'. Chanel's LBD was first published in American Vogue in 1926.
Question 8: How many heads does the mythical creature Hydra supposedly have?
In Greek mythology, the Hydra was a serpentine water monster with nine heads. If one head was cut off, two more would grow back in its place, making the Hydra nearly impossible to defeat.
Question 9: In the periodic table, which element has the atomic number 1?
Hydrogen is the lightest and most abundant chemical element in the universe. It is estimated that 75% of the universe's elemental mass is hydrogen.
Question 10: When do deciduous trees generally shed their leaves?
Deciduous trees typically shed their leaves in autumn as a response to the colder temperatures and reduced sunlight. This process allows the trees to conserve moisture and energy during the winter months. Colored foliage we observe during fall is due to the presence of pigments such as carotenoids and anthocyanins in the leaves.
lucky guess 
what a lovely surprise
but I think it’s time to change the wardrobe. The ubiquitous LBD is long worn out.
The Beatles decided to stop touring in 1966 after completing their last live concert at Candlestick Park in San Francisco. They chose to focus on their studio work, aiming for greater artistic freedom and experimentation in their music. This led to the creation of iconic albums like 'Sgt. Pepper's Lonely Hearts Club Band' and 'The White Album'.