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📅 Daily Quiz

Daily True or False
October 4, 2026

10 true or false questions from this day's daily challenge. Click each one to reveal the answer and explanation.

1.

Cate Blanchett has directed an opera at the Sydney Opera House.

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Hard
✓ TRUE

She directed the opera 'A Streetcar Named Desire' at the Sydney Opera House in 2013.

2.

Utagawa Hiroshige was a student of the artist Katsushika Hokusai.

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Medium
✗ FALSE

Hiroshige studied under Utagawa Toyohiro, not Hokusai. While both were major ukiyo-e artists, they were contemporaries, with no student-teacher relationship.

3.

Stick insects can change the color of their body instantly like a chameleon.

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Medium
✗ FALSE

Stick insects can change color slowly over days or weeks due to humidity, temperature, or background, but not instantly. Their camouflage relies on static appearance, not rapid color change.

4.

Saltwater crocodile is the largest reptile that ever lived on Earth.

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Easy
✗ FALSE

Many prehistoric reptiles, such as Sarcosuchus and dinosaurs, were far larger. Saltwater crocodile is the largest living reptile, but not of all time.

5.

Vincent van Gogh sold only one painting during his lifetime.

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Medium
✓ TRUE

Van Gogh sold 'The Red Vineyard' to Anna Boch in 1890 for 400 francs. This was the only confirmed sale of his work while he was alive.

6.

Alexander Fleming discovered penicillin by accident when a mold contaminated his bacterial cultures.

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Easy
✓ TRUE

Fleming returned from vacation in 1928 to find mold (Penicillium notatum) had killed surrounding bacteria—a lucky accident that changed medicine.

7.

The crisis lasted exactly 13 days, from October 16 to October 28, 1962.

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Easy
✓ TRUE

The Cuban Missile Crisis is widely referred to as the '13 days.' It began when President Kennedy was informed of Soviet missile sites on October 16 and ended with Khrushchev's withdrawal announcement on October 28, a span of exactly 13 days.

8.

Utagawa Hiroshige's work was a major influence on the European Impressionist movement.

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Medium
✓ TRUE

Artists like Vincent van Gogh and Claude Monet admired and collected Hiroshige's prints, and his compositional techniques influenced their work.

9.

Some tarantula species can live entirely underwater.

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Hard
✗ FALSE

Tarantulas are terrestrial and cannot breathe underwater. There are aquatic spiders like the diving bell spider, but no tarantula species lives submerged.

10.

Man Ray painted a mustache and beard on the Mona Lisa.

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Medium
✗ FALSE

That famous altered Mona Lisa, titled 'L.H.O.O.Q.', was created by Marcel Duchamp in 1919, not by Man Ray.

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