general
What is the only UN member country in the world whose national flag is not a quadrilateral (neither a rectangle nor a square), but consists of two stacked triangles?
Nepal
According to the official Badminton World Federation (BWF) rules, exactly how many natural feathers are fixed into a standard competition shuttlecock?
16
What is the only country in the world that is not only completely surrounded by another sovereign state, but itself also entirely encloses another independent enclave country?
Italy
In what year did the Hundred Years' War between the Kingdom of England and the Kingdom of France officially come to an end after lasting 116 years?
1453
Which planet in our solar system is the largest in both volume and mass?
Jupiter
Which planet in our solar system is closest to the Sun?
Mercury
Among the four Grand Slam tennis tournaments, which one is the only tournament played on natural grass courts?
Wimbledon
What is the largest landlocked country by land area in the world?
Kazakhstan
In 1969 during the Apollo 11 mission, which astronaut became the first human to step onto the surface of the Moon?
Neil Armstrong
In which famous museum in Paris, France, is Leonardo da Vinci's masterpiece Mona Lisa permanently displayed?
The Louvre (Musée du Louvre)
In Earth's dry atmosphere by volume, which noble gas is the third most abundant gas, behind only nitrogen (around 78%) and oxygen (around 21%)?
Argon
Who got the most final champion in NBA history
Bill Russell
What is the only country in the world that officially has three different capital cities: Pretoria (administrative), Cape Town (legislative), and Bloemfontein (judicial)?
South Africa
In 1914, sparking the outbreak of World War I, in which Balkan city was Archduke Franz Ferdinand of Austria assassinated?
Sarajevo
Proteins in the human body are made of amino acids; exactly how many standard, genetically encoded amino acids are there?
20
In the Celsius scale (°C), what exact temperature is theoretically defined as "Absolute Zero"?
-273.15°C
Usain Bolt
Which river in the world flows through the greatest number of countries (a total of 10 countries)?
Danube River
In which exact year did the Byzantine Empire (Eastern Roman Empire) finally fall when its capital Constantinople was captured by Ottoman Sultan Mehmed II?
1453
What is the longest and strongest bone in the human body?
Femur (Thigh bone)
The Mariana Trench is the deepest oceanic trench on Earth; what is the name of its deepest surveyed point?
Challenger Deep
In the 1968 Mexico City Olympics, Bob Beamon set a historic long jump world record. By exactly how many centimeters did he shatter the previous world record in that single jump?
55 cm
Among all provincial-level administrative divisions in China, two share the record for bordering the greatest number of neighboring provinces (each bordering 8 provinces/autonomous regions). One is Shaanxi; which one is the other?
Inner Mongolia Autonomous Region
In 1494, under papal mediation, which famous treaty did Spain and Portugal sign to establish a meridian line dividing the newly discovered lands outside Europe between them?
Treaty of Tordesillas
In quantum physics, what is the theoretical limit considered the smallest physically meaningful measurement of length beyond which current laws of physics break down?
Planck length