Daily True or False
September 21, 2026
10 true or false questions from this day's daily challenge. Click each one to reveal the answer and explanation.
1.John Singer Sargent studied painting under Claude Monet in Paris.
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Hard
John Singer Sargent studied painting under Claude Monet in Paris.
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John Singer Sargent studied at the École des Beaux-Arts under Carolus-Duran in Paris. He knew Monet but did not study under him; they were contemporaries and friends.
2.Piranha can strip a human to the bone in under a minute.
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Easy
Piranha can strip a human to the bone in under a minute.
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This is a myth. While piranha may bite, attacks on humans are rare and typically involve only minor nips. They do not devour people quickly.
3.Max Ernst created the collage novel 'Une Semaine de Bonté' using images from Victorian catalogs.
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Hard
Max Ernst created the collage novel 'Une Semaine de Bonté' using images from Victorian catalogs.
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Published in 1934, 'Une Semaine de Bonté' contains 182 collages made from 19th-century engravings, a landmark of Surrealist book art.
4.Pablo Picasso produced over 50,000 artworks, including paintings, sculptures, and ceramics.
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Medium
Pablo Picasso produced over 50,000 artworks, including paintings, sculptures, and ceramics.
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Picasso's prolific career yielded an estimated 50,000 works across many media, a record in the art world.
5.Al-Khwarizmi invented the concept of zero, which revolutionized mathematics forever.
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Medium
Al-Khwarizmi invented the concept of zero, which revolutionized mathematics forever.
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Zero was developed independently in ancient India (by Brahmagupta) and Mesoamerica; Al-Khwarizmi helped popularize the Hindu-Arabic numeral system but didn't invent zero.
6.Artemisia Gentileschi was the daughter of the painter Michelangelo Merisi da Caravaggio.
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Medium
Artemisia Gentileschi was the daughter of the painter Michelangelo Merisi da Caravaggio.
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Caravaggio had no known children. Artemisia's father was Orazio Gentileschi, a contemporary of Caravaggio but a different painter entirely.
7.Marina Abramović's performance 'The Artist is Present' lasted a total of 736 hours and 30 minutes.
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Hard
Marina Abramović's performance 'The Artist is Present' lasted a total of 736 hours and 30 minutes.
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From March to May 2010 at MoMA, Abramović sat motionless for 736.5 hours across 75 days, making it one of the longest silent performances ever.
8.Foals are born with their full set of adult teeth already developed in the jaw.
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Hard
Foals are born with their full set of adult teeth already developed in the jaw.
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Foals are born with temporary baby teeth, or deciduous teeth, which are gradually replaced by adult teeth over several years. Adult teeth aren't fully present until around age 5.
9.In 2016, a stick insect set the record for the longest insect ever measured.
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Hard
In 2016, a stick insect set the record for the longest insect ever measured.
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A stick insect species, Phryganistria chinensis, was discovered in China. It measured 24.5 inches (62.4 cm) long, making it the longest insect on record.
10.Andy Warhol was born Andrew Warhola in Pittsburgh, Pennsylvania.
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Medium
Andy Warhol was born Andrew Warhola in Pittsburgh, Pennsylvania.
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Warhol was born Andrew Warhola on August 6, 1928, in Pittsburgh. He later dropped the 'a' from his surname.
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