Daily True or False
May 4, 2026
10 true or false questions from this day's daily challenge. Click each one to reveal the answer and explanation.
1.Da Vinci was a lifelong vegetarian, a rare choice for Renaissance Italy.
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Hard
Da Vinci was a lifelong vegetarian, a rare choice for Renaissance Italy.
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Historical accounts note he never ate meat, likely for ethical reasons, and he even bought caged birds to free them.
2.Eating sushi with your hands is considered proper etiquette in Japan.
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Hard
Eating sushi with your hands is considered proper etiquette in Japan.
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In Japan, it's perfectly acceptable to eat nigiri sushi with your fingers. Using chopsticks is fine too, but hands are traditional and help prevent the rice from falling apart.
3.You could survive falling into a small black hole if you crossed the event horizon quickly.
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Hard
You could survive falling into a small black hole if you crossed the event horizon quickly.
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Tidal forces near a stellar-mass black hole are overwhelming. Even crossing fast, spaghettification would destroy you before reaching the horizon.
4.The center of a black hole is a point of infinite density called a singularity.
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Medium
The center of a black hole is a point of infinite density called a singularity.
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General relativity predicts a singularity at the core where density and gravity become infinite, though quantum effects may alter this.
5.Sunlight on Mars is about half as strong as on Earth, making it too dim for solar panels to work.
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Medium
Sunlight on Mars is about half as strong as on Earth, making it too dim for solar panels to work.
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Mars receives about 44% of Earth's sunlight, but solar panels still work efficiently—NASA's rovers rely on them. Dust storms can reduce output, but not entirely.
6.Marie Curie's notebooks are too radioactive to handle without protective gear.
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Medium
Marie Curie's notebooks are too radioactive to handle without protective gear.
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Curie's lab notebooks from the 1890s are stored in lead-lined boxes and are hazardous due to radium contamination. They'll remain radioactive for another 1,500 years.
7.Venus flytraps produce flowers on long stalks to avoid trapping potential pollinators.
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Hard
Venus flytraps produce flowers on long stalks to avoid trapping potential pollinators.
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The flower stalk grows tall above the traps, keeping bees and butterflies safe.
8.Marie Curie's husband Pierre was killed in a laboratory explosion.
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Easy
Marie Curie's husband Pierre was killed in a laboratory explosion.
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Pierre Curie died in 1906 when he was run over by a horse-drawn carriage in Paris. It was a tragic accident, not related to their lab work.
9.Taylor Swift's cat Olivia Benson has her own line of merchandise.
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Easy
Taylor Swift's cat Olivia Benson has her own line of merchandise.
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While Olivia Benson is famous and appears in music videos, Swift has never released official merchandise just for her cat.
10.All sushi contains raw fish by definition.
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Easy
All sushi contains raw fish by definition.
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Sushi refers to vinegared rice, not raw fish. Many sushi varieties use cooked fish, vegetables, or egg. Raw fish is sashimi, which is a separate dish served without rice.
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