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dict |
|---|---|---|---|
What is the capital of France? | Paris | {
"context": "France is a country in Europe. Its capital is Paris."
} | {
"category": "geography",
"difficulty": "easy",
"region": null
} |
Who wrote Romeo and Juliet? | William Shakespeare | {
"context": "Romeo and Juliet is a famous play written by William Shakespeare."
} | {
"category": "literature",
"difficulty": "easy",
"region": null
} |
What is 2 + 2? | 4 | {
"context": "Basic arithmetic: 2 + 2 equals 4."
} | {
"category": "math",
"difficulty": "easy",
"region": null
} |
What is the largest planet in our solar system? | Jupiter | {
"context": "Jupiter is the largest planet in our solar system."
} | {
"category": "astronomy",
"difficulty": "easy",
"region": null
} |
Who painted the Mona Lisa? | Leonardo da Vinci | {
"context": "The Mona Lisa was painted by Leonardo da Vinci."
} | {
"category": "art",
"difficulty": "easy",
"region": null
} |
What is the derivative of sin(x)? | cos(x) | {
"context": "In differential calculus, the derivative of sin(x) with respect to x is cos(x)."
} | {
"category": "calculus",
"difficulty": "medium",
"region": null
} |
Who discovered penicillin? | Alexander Fleming | {
"context": "Penicillin was discovered in 1928 by Alexander Fleming."
} | {
"category": "biology",
"difficulty": "medium",
"region": null
} |
What is 5 factorial? | 120 | {
"context": "By definition, 5! = 5 × 4 × 3 × 2 × 1 = 120."
} | {
"category": "math",
"difficulty": "easy",
"region": null
} |
In what year did the Berlin Wall fall? | 1989 | {
"context": "The Berlin Wall fell on November 9, 1989, marking the beginning of German reunification."
} | {
"category": "history",
"difficulty": "medium",
"region": null
} |
What is the time complexity of binary search on a sorted array? | O(log n) | {
"context": "Binary search splits the search interval in half each step, giving logarithmic time complexity."
} | {
"category": "computer science",
"difficulty": "medium",
"region": null
} |
What is the atomic number of carbon? | 6 | {
"context": "On the periodic table, carbon has atomic number 6."
} | {
"category": "chemistry",
"difficulty": "easy",
"region": null
} |
What is the speed of light in vacuum (m/s)? | 299792458 | {
"context": "By definition, the speed of light in vacuum is exactly 299,792,458 m/s."
} | {
"category": "physics",
"difficulty": "medium",
"region": null
} |
What does HTTP stand for? | Hypertext Transfer Protocol | {
"context": "HTTP is the foundation of data communication for the World Wide Web."
} | {
"category": "computer science",
"difficulty": "easy",
"region": null
} |
What year did Apollo 11 land on the Moon? | 1969 | {
"context": "Apollo 11 landed on the Moon on July 20, 1969."
} | {
"category": "history",
"difficulty": "medium",
"region": null
} |
What is Euler’s identity? | e^(iπ) + 1 = 0 | {
"context": "Euler’s identity is often cited as an example of mathematical beauty."
} | {
"category": "math",
"difficulty": "medium",
"region": null
} |
What is the boiling point of water at sea level (°C)? | 100 | {
"context": "At standard atmospheric pressure, water boils at 100 °C."
} | {
"category": "chemistry",
"difficulty": "easy",
"region": null
} |
What is the capital of Nigeria? | Abuja | {
"context": "Nigeria is a country in West Africa. Its capital is Abuja."
} | {
"category": "geography",
"difficulty": "easy",
"region": null
} |
What is the capital of Australia? | Canberra | {
"context": "Australia’s capital city is Canberra."
} | {
"category": "geography",
"difficulty": "easy",
"region": "Oceania"
} |
What is the capital of Japan? | Tokyo | {
"context": "Japan’s capital city is Tokyo."
} | {
"category": "geography",
"difficulty": "easy",
"region": "Asia"
} |
What is the square root of 81? | 9 | {
"context": "The square root of 81 is 9."
} | {
"category": "math",
"difficulty": "easy",
"region": null
} |
What is the value of π to two decimal places? | 3.14 | {
"context": "Pi (π) is approximately 3.14159…, which rounds to 3.14 at two decimal places."
} | {
"category": "math",
"difficulty": "easy",
"region": null
} |
What is the sum of the interior angles of a triangle in degrees? | 180 | {
"context": "In Euclidean geometry, the interior angles of any triangle add up to 180 degrees."
} | {
"category": "math",
"difficulty": "easy",
"region": null
} |
Solve for x: x² - 4 = 0 | x = 2 or x = -2 | {
"context": "The equation x² - 4 = 0 factors to (x - 2)(x + 2) = 0, so x = 2 or x = -2."
} | {
"category": "math",
"difficulty": "easy",
"region": null
} |
How many seconds are in one hour? | 3600 | {
"context": "60 seconds × 60 minutes = 3600 seconds in one hour."
} | {
"category": "time",
"difficulty": "easy",
"region": null
} |
How many minutes are in a day? | 1440 | {
"context": "24 hours × 60 minutes = 1440 minutes in a day."
} | {
"category": "time",
"difficulty": "easy",
"region": null
} |
How many hours are in a week? | 168 | {
"context": "7 days × 24 hours = 168 hours in a week."
} | {
"category": "time",
"difficulty": "easy",
"region": null
} |
How many months have 31 days? | 7 | {
"context": "January, March, May, July, August, October, and December each have 31 days."
} | {
"category": "calendar",
"difficulty": "easy",
"region": null
} |
Which galaxy is Earth located in? | The Milky Way | {
"context": "Our Solar System resides in the Milky Way galaxy."
} | {
"category": "astronomy",
"difficulty": "easy",
"region": null
} |
What is the formula for kinetic energy? | ½mv² | {
"context": "Kinetic energy is defined as one-half mass times velocity squared."
} | {
"category": "physics",
"difficulty": "medium",
"region": null
} |
What is Newton’s second law of motion? | F = ma | {
"context": "Newton’s second law states that force equals mass times acceleration."
} | {
"category": "physics",
"difficulty": "medium",
"region": null
} |
What is the standard acceleration due to gravity on Earth (m/s²)? | 9.81 | {
"context": "Standard gravity is defined as 9.81 m/s²."
} | {
"category": "physics",
"difficulty": "medium",
"region": null
} |
Which formula expresses mass–energy equivalence? | E = mc² | {
"context": "Einstein’s mass–energy equivalence formula is E = mc²."
} | {
"category": "physics",
"difficulty": "medium",
"region": null
} |
What is the powerhouse of the cell? | Mitochondria | {
"context": "Mitochondria generate most of the cell’s supply of ATP and are known as the powerhouse of the cell."
} | {
"category": "biology",
"difficulty": "easy",
"region": null
} |
What molecule carries genetic information in most living organisms? | DNA | {
"context": "Deoxyribonucleic acid (DNA) holds genetic blueprints for living organisms."
} | {
"category": "biology",
"difficulty": "easy",
"region": null
} |
Who wrote the novel 1984? | George Orwell | {
"context": "1984 is a dystopian novel authored by George Orwell and published in 1949."
} | {
"category": "literature",
"difficulty": "easy",
"region": null
} |
Who wrote To Kill a Mockingbird? | Harper Lee | {
"context": "To Kill a Mockingbird is a Pulitzer Prize–winning novel by Harper Lee."
} | {
"category": "literature",
"difficulty": "easy",
"region": null
} |
Who was the first President of the United States? | George Washington | {
"context": "George Washington served as the first U.S. President from 1789 to 1797."
} | {
"category": "history",
"difficulty": "easy",
"region": null
} |
In which year did World War I begin? | 1914 | {
"context": "World War I started on July 28, 1914."
} | {
"category": "history",
"difficulty": "medium",
"region": null
} |
In which year did World War II end? | 1945 | {
"context": "World War II concluded on September 2, 1945."
} | {
"category": "history",
"difficulty": "medium",
"region": null
} |
What is the smallest country in the world by area? | Vatican City | {
"context": "Vatican City covers about 44 hectares and is the world’s smallest independent state."
} | {
"category": "geography",
"difficulty": "medium",
"region": "Europe"
} |
Which element has the chemical symbol Au? | Gold | {
"context": "Au comes from the Latin name aurum for the metal gold."
} | {
"category": "chemistry",
"difficulty": "easy",
"region": null
} |
What does GDP stand for? | Gross Domestic Product | {
"context": "GDP measures the total market value of all final goods and services produced in a country."
} | {
"category": "economics",
"difficulty": "medium",
"region": null
} |
What is the currency of Japan? | Yen | {
"context": "The official currency of Japan is the Yen (¥)."
} | {
"category": "economics",
"difficulty": "easy",
"region": null
} |
What is the output of print(len([1, 2, 3])) in Python? | 3 | {
"context": "len([1, 2, 3]) returns the number of items in the list, which is 3."
} | {
"category": "computer science",
"difficulty": "easy",
"region": null
} |
In Python, what keyword is used to define a function? | def | {
"context": "The def keyword introduces a function definition in Python."
} | {
"category": "computer science",
"difficulty": "easy",
"region": null
} |
In JavaScript, what keyword declares a variable with block scope? | let | {
"context": "let declares a block-scoped local variable in JavaScript."
} | {
"category": "computer science",
"difficulty": "easy",
"region": null
} |
What is the average-case time complexity of quicksort? | O(n log n) | {
"context": "Quicksort on average partitions arrays in half each recursion, yielding O(n log n)."
} | {
"category": "computer science",
"difficulty": "medium",
"region": null
} |
If P implies Q and Q implies R, does P imply R? | Yes | {
"context": "By transitivity of implication, if P ⇒ Q and Q ⇒ R, then P ⇒ R."
} | {
"category": "logic",
"difficulty": "medium",
"region": null
} |
If all cats are mammals and some mammals are black, can we conclude that some cats are black? | No | {
"context": "The premises do not guarantee any overlap between cats and the subset of black mammals."
} | {
"category": "logic",
"difficulty": "medium",
"region": null
} |
What is the binary representation of decimal 10? | 1010 | {
"context": "10 in base-10 converts to 1010 in base-2."
} | {
"category": "computer science",
"difficulty": "easy",
"region": null
} |
In git, what command stages changes for commit? | git add | {
"context": "git add adds changes in the working directory to the staging area."
} | {
"category": "computer science",
"difficulty": "medium",
"region": null
} |
What is Big O notation used for? | Describing algorithm complexity | {
"context": "Big O notation characterizes an algorithm’s performance in terms of input size."
} | {
"category": "computer science",
"difficulty": "medium",
"region": null
} |
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