Daily True or False
October 15, 2026
10 true or false questions from this day's daily challenge. Click each one to reveal the answer and explanation.
1.Serena Williams has never been ranked world number 1 in doubles.
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Hard
Serena Williams has never been ranked world number 1 in doubles.
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False: Serena reached world number 1 in doubles in June 2010, alongside her sister Venus. She has also won 14 Grand Slam doubles titles, all with Venus.
2.Hammerhead sharks are the most dangerous shark species to humans.
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Easy
Hammerhead sharks are the most dangerous shark species to humans.
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Hammerhead sharks are not among the most dangerous; they rarely attack humans. Species like the great white, tiger, and bull sharks are responsible for far more bites.
3.John Constable was born in East Bergholt, Suffolk, in 1776.
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Easy
John Constable was born in East Bergholt, Suffolk, in 1776.
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John Constable was born on June 11, 1776, in East Bergholt, Suffolk, England, to a wealthy mill-owning family. This is a well-documented biographical fact.
4.Norman Rockwell was entirely self-taught and never attended art school.
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Medium
Norman Rockwell was entirely self-taught and never attended art school.
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Norman Rockwell studied at the Art Students League in New York and the National Academy of Design, training under several established artists.
5.Eugène Delacroix painted 'Liberty Leading the People' to commemorate the July Revolution of 1830.
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Medium
Eugène Delacroix painted 'Liberty Leading the People' to commemorate the July Revolution of 1830.
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This iconic painting depicts the July Revolution of 1830 in France. Delacroix completed it in 1830 and exhibited it at the Salon of 1831.
6.Some stick insects spray a defensive secretion that smells like vinegar.
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Medium
Some stick insects spray a defensive secretion that smells like vinegar.
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Species like the southern two-striped walkingstick produce a chemical spray containing acetic acid, which gives it a vinegar-like odor. It deters predators but is harmless to humans.
7.Scorpion first appeared in The Amazing Spider-Man #19 in 1964.
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Medium
Scorpion first appeared in The Amazing Spider-Man #19 in 1964.
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Scorpion debuted in The Amazing Spider-Man #19, published in 1964, created by Stan Lee and Steve Ditko.
8.Pablo Picasso co-founded the Cubist movement alongside the artist Georges Braque.
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Medium
Pablo Picasso co-founded the Cubist movement alongside the artist Georges Braque.
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Cubism was developed by Picasso and Braque around 1907–1914, changing the course of modern art.
9.The Scorpion (Mac Gargan) is a member of the X-Men.
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Easy
The Scorpion (Mac Gargan) is a member of the X-Men.
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The Scorpion is the supervillain alias of Mac Gargan, a longtime Spider-Man enemy. He has never been a member of the X-Men.
10.Saltwater crocodile has a venomous bite that can paralyze its prey.
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Easy
Saltwater crocodile has a venomous bite that can paralyze its prey.
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Saltwater crocodile has no venom glands. Its bite relies on immense crushing force, not toxins, to subdue prey.
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