Friday, August 21, 2026
These are the 10 questions BrainRank served to the whole world on Friday, August 21, 2026 — now over, with every answer revealed and explained. Reading time only; the score no longer counts.
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history
The Viking seafarers originated primarily from which region of Europe?
- Scandinavia
- Iberia
- The Balkans
- The British Isles
Answer: Scandinavia
The Vikings originated from Scandinavia (Norway, Sweden, and Denmark).
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geography
What is the capital of Argentina?
- Buenos Aires
- Córdoba
- Rosario
- Mendoza
Answer: Buenos Aires
Buenos Aires is the capital of Argentina.
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science
On the pH scale, which value is considered neutral?
- 0
- 7
- 10
- 14
Answer: 7
A pH of 7 is neutral; below 7 is acidic and above 7 is basic.
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arts
Which percussion instrument consists of tuned wooden bars struck with mallets?
- Cymbals
- Xylophone
- Snare drum
- Triangle
Answer: Xylophone
The xylophone has tuned wooden bars played by striking with mallets.
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everyday-science
What does a thermometer measure?
- Air pressure
- Temperature
- Humidity
- Weight
Answer: Temperature
A thermometer measures temperature.
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history
The Industrial Revolution began in which country during the 18th century?
- Germany
- United States
- Britain
- Russia
Answer: Britain
The Industrial Revolution began in Britain in the mid-to-late 18th century.
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science
Which subatomic particle carries a negative electric charge?
- Proton
- Neutron
- Electron
- Nucleus
Answer: Electron
The electron carries a negative electric charge.
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language
The Latin root 'aqua' refers to which of these?
- Fire
- Air
- Water
- Earth
Answer: Water
'Aqua' is Latin for 'water', as in 'aquarium'.
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math
What number comes next: 100, 90, 80, 70, ...?
- 50
- 55
- 65
- 60
Answer: 60
Counting down by 10: 70 − 10 = 60.
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nature
Which reptile has no legs and moves by slithering?
- Snake
- Lizard
- Turtle
- Crocodile
Answer: Snake
Snakes are limbless reptiles that move by slithering.