Wednesday, September 16, 2026
These are the 10 questions BrainRank served to the whole world on Wednesday, September 16, 2026 — now over, with every answer revealed and explained. Reading time only; the score no longer counts.
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geography
Which river is the longest in South America?
- Paraná River
- Orinoco River
- São Francisco River
- Amazon River
Answer: Amazon River
The Amazon is South America's longest river.
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nature
What is the largest species of big cat in the world?
- Tiger
- Lion
- Leopard
- Jaguar
Answer: Tiger
The tiger is the largest living cat species.
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arts
What is the name for a poem of three lines with a 5-7-5 syllable pattern?
- Limerick
- Haiku
- Ode
- Ballad
Answer: Haiku
A haiku is a three-line poem with a 5-7-5 syllable structure.
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language
Which word is the closest synonym of 'brave'?
- Timid
- Courageous
- Cautious
- Fearful
Answer: Courageous
'Courageous' matches 'brave'.
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nature
Honey is made mainly from which substance bees gather from flowers?
- Nectar
- Tree sap
- Pollen
- Rainwater
Answer: Nectar
Bees make honey primarily from flower nectar.
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history
Which material gave its name to the earliest widespread period of human tool-making?
- Bronze
- Stone
- Iron
- Copper
Answer: Stone
The Stone Age is named for the earliest widespread use of stone tools.
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science
Which is the largest planet in our solar system?
- Saturn
- Neptune
- Jupiter
- Earth
Answer: Jupiter
Jupiter is the most massive and largest planet in the solar system.
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geography
What is the capital of Greece?
- Thessaloniki
- Patras
- Athens
- Heraklion
Answer: Athens
Athens is the capital of Greece.
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math
What is 45 + 55?
- 90
- 100
- 95
- 110
Answer: 100
45 + 55 = 100.
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math
What number comes next: 5, 10, 20, 40, ...?
- 50
- 60
- 80
- 100
Answer: 80
Each term doubles: 40 × 2 = 80.