Science
What is the main pigment in red blood cells?
What is hemoglobin?
What is the term for a word that imitates a sound?
What is onomatopoeia?
Who was the leader of the Soviet Union during World War II?
Who is Joseph Stalin?
What is the slope of the line y=3x+2?
What is 3?
What country spans 2 different continents?
What is Russia?
Which layer of Earth is composed mostly of iron and nickel?
What is the core?
What is the antonym to the word expand?
What is contract?
Which battle marked a turning point during the American Civil War?
What is the Battle of Gettysburg?
What is the median of the set?
5, 8, 12, 15, 20
What is 12?
What is the term for the value of a brand in the market?
What sugar is found in DNA?
What is deoxyribose?
What is the word order of Modern English?
What is subject-verb-object?
Which country started the Industrial Revolution?
What is Great Britain?
What is the sum of angles in a triangle?
What is 180 degrees?
What is the greatest common denominator of 24 and 36?
What is 12?
What type of bond involves the sharing of electron pairs?
What is a covalent bond?
What is the study of sentence structure called?
What is syntax?
What civilization built Machu Picchu?
What is the Inca?
What is the solution to the equation?
2x-5-11 = 0
What is 8?
What is Aristotle's ethical focus?
What is virtue?
What structure in the brain is responsible for memory and learning?
What is the hippocampus?
What is the superlative form of the word 'happy'?
What is happiest?
What year did the French Revolution begin?
What is 1789?
What comes next in the following sequence?
2, 6, 12, 20, 30, ...?
What is 42?
What is the approximate age of the Earth?
What is 4.54 billion years old?