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