Daily True or False
October 1, 2026
10 true or false questions from this day's daily challenge. Click each one to reveal the answer and explanation.
1.The Magna Carta was the first document to limit the power of the English monarchy.
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Medium
The Magna Carta was the first document to limit the power of the English monarchy.
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The Charter of Liberties, issued by King Henry I in 1100, earlier restricted royal power, including protections for barons and the church. Thus, the Magna Carta was not the first such document.
2.Piranha have interlocking teeth that are often used as tools by indigenous people.
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Hard
Piranha have interlocking teeth that are often used as tools by indigenous people.
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Indigenous groups in South America have historically used piranha teeth as cutting tools, blades, and in weapons due to their sharpness and durability.
3.Congo River's drainage basin covers an area larger than India.
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Medium
Congo River's drainage basin covers an area larger than India.
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The Congo Basin spans about 4 million square kilometers, while India covers about 3.3 million sq km, making the basin larger.
4.Piranha are native to the freshwater rivers of South America.
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Easy
Piranha are native to the freshwater rivers of South America.
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Piranha are naturally found in South American river systems, particularly the Amazon, Orinoco, and Paraná basins. They are not native to other continents.
5.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.
6.Penicillin works by weakening the cell walls of bacteria, causing them to burst.
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Easy
Penicillin works by weakening the cell walls of bacteria, causing them to burst.
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Penicillin inhibits enzymes that build bacterial cell walls, leading to osmotic lysis—bacteria literally pop.
7.Max Ernst was born in Zurich, Switzerland, and grew up there.
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Easy
Max Ernst was born in Zurich, Switzerland, and grew up there.
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Max Ernst was born in Brühl, near Cologne, Germany, on April 2, 1891. He spent his childhood in Germany, not Switzerland.
8.Alexander Calder designed the NHL's Calder Memorial Trophy for rookie of the year.
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Hard
Alexander Calder designed the NHL's Calder Memorial Trophy for rookie of the year.
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The Calder Memorial Trophy is named after Frank Calder, the NHL's first president, not the sculptor Alexander Calder.
9.Wu Zetian was a devout Buddhist and promoted Buddhism over Confucianism.
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Medium
Wu Zetian was a devout Buddhist and promoted Buddhism over Confucianism.
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She used Buddhist prophecies to legitimize her rule and funded many temples, shifting state favor from Confucian scholars.
10.Michael Jordan never lost a playoff series after his first retirement in 1993.
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Medium
Michael Jordan never lost a playoff series after his first retirement in 1993.
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After returning from his first retirement, Jordan lost to the Orlando Magic in the 1995 Eastern Conference semifinals. He later won three more titles.
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