Answer: 1000 grams
A kilogram is equal to 1000 grams.
Answer: John F. Kennedy
John F. Kennedy was the fourth President of the United States to have been assassinated while in office.
Answer: Gotham City
Batman lives and works in Gotham City.
The acorn is actually the fruit of the Oak tree and they begin showing up after the tree is 20 years old.
A female elephant is a cow. Female elephants tend to be smaller than their male counterparts.
Answer: New York City
Located in Lower Manhattan, New York City, Wall Street is considered America's financial center.
In 2004, Mark Zuckerberg, Chris Hughes, Andrew McCollum, Eduardo Saverin and Dustin Moskovitz founded the famous social networking site Facebook in Cambridge, Massachusetts, United States.
Adolf Hitler was a dictator who ruled as Chancellor of Germany from 1933 to 1945.
A millennium is a period of a thousand years. It got its name from the word "mille", which is Latin for one thousand.