Science
Who was Galileo Galilei?
Solve this problem for x in 60 seconds or less without a calculator: (12 · 7)x+(5 · 4)=104
What is x = 1?
What are the three fundamental components of an essay?
What are an introduction, body, and conclusion?
The second president of the United States of America.
Who was John Adams?
Name a famous composer.
Many accepted (e.g. Johann Bach, Ludwig van Beethoven, Wolfgang Mozart).
Albert Einstein's most famous equation.
What is E=mc2? (Other answers accepted).
The mathematical property that states that x + y = y + x is true.
What is the Commutative Property of Addition?
Who was Leo Tolstoy?
The year the Constitution was signed into law.
When was September 17, 1787? (The year is enough).
Who was Leonardo da Vinci?
What is, "For every action, there is an equal and opposite reaction?" (Or something similar).
The Pythagorean Theorem
What is a2+b2=c2 where a and b are sides of the right triangle and c is the hypotenuse? (Just get close.)
The difference between first and second-hand research.
This answer does not need to be in the form of a question. Anything close is acceptable. "First-hand research is an investigation into a question whose answer is not known but which is answered through various forms of inquiry by the researcher. Second-hand research is information acquired through study of information acquired by previous individuals."
The number of presidents before Abraham Lincoln.
What are 15 presidents?
The number of strings on a violin.
What are 4 strings?
The three principle subatomic particles that comprise an atom.
What are neutrons, protons, and electrons?
What is x = the opposite of b ± the √ of the quantity b2 + 4ac all divided by 2a, when ax2+bx+c=0, a,b, c are constants and a≠0? (We'll be lenient).
Definition of a preposition.
What is a word governing, and usually preceding, a noun or pronoun and expressing a relation to another word or element in the clause? (Definition quotes from Google, similar wordings accepted).
When the United States of America Joined World War 1.
When was April 6, 1917? (The year is enough).
The most famous violin maker.
Who was Antonio Stradivari (other answers accepted)?
The man who founded today's animal classification system.
Who was Carl Linnaeus?
What a logarithm is (go simple).
What is an exponent?
A rough estimate of the number of copies the Bible has printed.
The year the Titanic sunk.
When was 1912?
The man who painted The Scream.
Who was Edvard Munch?