Case File #0067
Aug 27, 2026 — 10 rounds, declassified. The fabrication in each is marked; the truth of all three follows. Play today's case →
- Round 1 FOOD
- ✗ FABRICATION
Worcestershire sauce was invented by ancient Roman soldiers who fermented fish with barley while stationed in Britain.
FALSE. It is a 19th-century English creation from the city of Worcester, not a Roman military invention.
- ✓ TRUE
Worcestershire sauce is a fermented condiment whose ingredients include anchovies, vinegar, and tamarind.
TRUE. The sauce's savory depth comes from fermented anchovies plus vinegar, tamarind, and spices.
- ✓ TRUE
The sauce originated in the English county of Worcestershire in the 1800s.
TRUE. Worcestershire sauce takes its name and origin from that English county in the 19th century.
- ✗ FABRICATION
- Round 2 ANIMALS
- ✓ TRUE
Tardigrades can survive being dried out for years by shriveling into a dormant, barrel-shaped state called a tun.
TRUE — in the tun state their metabolism nearly stops, letting them wait out drought until water returns.
- ✓ TRUE
Tardigrades have survived direct exposure to the vacuum and radiation of open space.
TRUE — in a 2007 orbital experiment, some tardigrades exposed to space vacuum and radiation survived and later reproduced.
- ✗ FABRICATION
Tardigrades are the largest animals able to enter cryptobiosis, reaching up to five centimeters in length.
FALSE — tardigrades are microscopic, typically around half a millimeter long; you generally need a microscope to see them.
- ✓ TRUE
- Round 3 NATURE
- ✓ TRUE
Earthworms breathe through their skin, which must stay moist for oxygen to pass through.
TRUE. They have no lungs; gas exchange happens across their damp skin.
- ✓ TRUE
Earthworms have no eyes but can sense light through specialised cells in their skin, which is why they avoid the surface in daylight.
TRUE. Light-sensitive cells let them detect and avoid bright conditions.
- ✗ FABRICATION
Cutting an earthworm in half reliably produces two healthy worms, because both halves grow complete new bodies.
FALSE. Usually only the front half survives and regenerates a tail; the tail half cannot regrow the vital head end.
- ✓ TRUE
- Round 4 SCIENCE
- ✗ FABRICATION
A penny dropped from the top of a skyscraper would kill a pedestrian standing on the sidewalk below.
FALSE. A penny's shape and low terminal velocity mean it would sting at worst, not kill.
- ✓ TRUE
Terminal velocity is the steady speed a falling object reaches once air resistance balances gravity.
TRUE. When drag equals the pull of gravity, the object stops accelerating and falls at a constant speed.
- ✓ TRUE
In a vacuum, a feather and a hammer fall at the same rate, as an astronaut showed on the Moon.
TRUE. With no air resistance, all objects accelerate equally; Apollo 15 demonstrated this on the Moon.
- ✗ FABRICATION
- Round 5 LANGUAGE
- ✓ TRUE
The sentence 'The quick brown fox jumps over the lazy dog' is a pangram that uses every letter of the English alphabet.
TRUE. It is the classic example of a sentence containing all 26 letters.
- ✓ TRUE
Written English once used more letters than it does today, including characters like thorn (þ) that later fell out of use.
TRUE. Old English included letters such as thorn and eth that disappeared over time.
- ✗ FABRICATION
The English alphabet has always had exactly 26 letters, unchanged since the language was first written down.
FALSE. The alphabet evolved over centuries, adding and dropping letters before settling at 26.
- ✓ TRUE
- Round 6 GEOGRAPHY
- ✓ TRUE
Russia is the world's largest country by land area and stretches across eleven time zones.
TRUE. Russia is by far the biggest country and spans eleven time zones.
- ✗ FABRICATION
Canada is the world's second-largest country by area and shares land borders with three different nations.
FALSE. Canada is second-largest, but its only land border is with the United States.
- ✓ TRUE
China and India are the two most populous countries in the world.
TRUE. India and China are the world's two most populous nations, each above a billion people.
- ✓ TRUE
- Round 7 NATURE
- ✓ TRUE
A Venus flytrap counts how many times its trigger hairs are touched, snapping shut only once it has been stimulated enough.
TRUE. It waits for repeated touches so it does not waste energy closing on a false alarm.
- ✓ TRUE
Venus flytraps are native to a small coastal region of North and South Carolina in the United States.
TRUE. In the wild they grow only in a limited bog habitat in the Carolinas.
- ✗ FABRICATION
Venus flytraps catch insects mainly for the meat, which they need to survive the way animals do.
FALSE. They make their own food by photosynthesis; trapped insects supply nutrients like nitrogen missing from their poor soil.
- ✓ TRUE
- Round 8 NATURE
- ✓ TRUE
Auroras are triggered when charged particles streaming from the Sun collide with gases high in Earth's atmosphere.
TRUE — Earth's magnetic field funnels these particles toward the poles, where they energize the upper-atmosphere gases.
- ✗ FABRICATION
The green in an aurora comes from sunlight reflecting off ice crystals high in the atmosphere.
FALSE — the green light is emitted by oxygen atoms that were energized by incoming particles, not reflected sunlight.
- ✓ TRUE
Auroras occur on other planets too, including Jupiter and Saturn.
TRUE — any planet with a magnetic field and an atmosphere can host auroras, and gas giants show powerful ones.
- ✓ TRUE
- Round 9 HISTORY
- ✓ TRUE
The Roman Colosseum was completed around 80 AD and could seat tens of thousands of spectators for public games.
TRUE — estimates put capacity near 50,000, filling an enormous stone amphitheatre.
- ✗ FABRICATION
Roman gladiators always fought to the death, and no gladiator ever survived beyond a handful of matches in the arena.
FALSE — many gladiators survived for years, gained fans, and could win freedom; deaths were costly and not guaranteed.
- ✓ TRUE
Ancient Romans mixed volcanic ash into their concrete, helping some of their structures survive for two thousand years.
TRUE — pozzolanic ash gave Roman concrete remarkable durability, even in seawater.
- ✓ TRUE
- Round 10 SCIENCE
- ✓ TRUE
Fiber-optic cables carry data as pulses of light bouncing along thin strands of glass.
TRUE. Light signals reflect down the glass fiber, carrying huge amounts of data quickly.
- ✗ FABRICATION
Wi-Fi signals are a special kind of sound wave, which is why thick walls can muffle them.
FALSE. Wi-Fi is radio (electromagnetic) waves, not sound; walls weaken them by absorbing radio energy.
- ✓ TRUE
Radio signals travel at the speed of light, so a call across the planet carries a tiny but real delay.
TRUE. Even at light speed, long distances and relays add a small, noticeable lag.
- ✓ TRUE