What force keeps us on the ground
What is gravity
4 + 7
11
Who was the 1st president of the United States
Who is George Washington
How many continents are on Earth
What is the name of the red bridge north of San Francisco
What is the Golden Gate bridge
What is Mercury
Simplify 63 / 9
7
Who wrote the Declaration of Independence
Who is Thomas Jefferson
What is the longest river in the world
What is the Nile
Who is the mayor
Who is Daniel Lurie
About how long does it take for the Earth to complete one revolution around the Sun
365 days
How many degrees are in a right angle
90
Who discovered electricity
Who is Benjamin Franklin
What is the largest ocean on Earth
What is the Pacific Ocean
What is the famous island prison in the Bay Area
What is Alcatraz
How many elements are on the periodic table
118
What is the numerical value of pi (up to 2 decimal places)
3.14
Which country first produced paper
What is China
In what country are the pyramids of Giza located
What is Egypt
What is the tallest building in San Francisco
What are the layers of the Earth
Crust, Mantle, Core
23 x 12
276
Who was the president for the shortest amount of time
Who is William Henry Harrison
What is the smallest country in the world
What is Vatican City
What year was the earthquake that destroyed over 80% of the city
When is 1906