1. The Brooklyn River
   The East River
2. The Monongahela
   The Schuykill

This famous bridge crosses the unimaginatively named East River. The bridge's profile, with its high, narrow arches and steel cables, is one of the most recognizable in the world.

1. Appalachia
   The Adirondacks
2. The Mississippi Delta
   The Florida Keys

This musical genre is named for the grass that grows underfoot in the Eastern U.S. region. But its artistic roots are in Scotland, England, and Ireland, where fiddle music, reels and jigs came from, crossing the Atlantic with immigrants. If you've never seen the accompanying dance style, "Appalachian flatfooting," check out the videos on YouTube. It's worth watching.

1. 12
   15
2. 30
   500

The Dow is actually a very small index. To get a better feel for how the American economy is performing, check the Standard & Poor's 500 (commonly abbreviated as "S&P 500"). It's much more reflective, though the Dow steals all the headlines!

1. Venus
   Jupiter
2. Mars
   Saturn

Phobos and Deimos mean "fear" and "panic," respectively. The names were chosen because these would be typical results of war, and Mars was the Roman god of war.

1. Pennsylvania
   Kentucky
2. New York
   Virginia

There are four commonwealths in the United States. Despite this, Virginia, Pennsylvania, Massachusetts and Kentucky are all casually referred to as "states," and operate, in terms of administration, like America's other states.

1. Electrons
   Neutrons
2. Protons
   Water molecules

Atoms are made up of protons, neutrons and electrons. This is one of the first things you learn in chemistry class. If you said "water molecules," stay in school, sweetie!

1. Abraham Lincoln
   Franklin D. Roosevelt
2. Ronald Reagan
   Harry S Truman

The New Deal was spearheaded by FDR. He used public works projects and farm subsidies to stimulate the economy after The Depression. Economists are mixed in their opinions of how successful Roosevelt's programs were, and how much of the rebound was due to a "natural recovery."

1. A sapphire
   A hematite
2. A ruby
   An onyx

"Ruby" comes from the Latin word, "ruber," for red. It is one of the most valued gemstones in jewelry-making, along with emeralds, sapphires, and diamonds.

1. Lauren Bacall
   Hedy Lamarr
2. Judy Garland
   Elizabeth Taylor

Elizabeth Taylor received this hefty paycheck for "Cleopatra." William Holden had already crossed the boundary for "Bridge Over the River Kwai." Though A-list actresses command salaries closer to the eight-figure range these days, working ones would be quite happy with Liz's "Cleopatra" pay!

1. Coptic
   Hopi
2. Mayan
   Ainu

We're not sure how many people got their affairs in order and said goodbye to loved ones based solely on the idea that the Mayan calendar didn't extend past the year 2012. But the idea gained enough traction to justify a disaster movie with everyone's favorite action hero, John Cusack. (Wait, what?)

1. Aspirin
   Dynamite
2. The coffee decaffeinator
   The compact disc

If you got this question right, you might know the story. After a newspaper prematurely printed an obituary for Nobel that criticized him for contributing to modern warfare, he founded the Nobel Prizes so he'd be remembered for something good. It worked out pretty well, wouldn't you say?

1. Elegy on a Country Churchyard
   Leaves of Grass
2. Shakespeare's 23rd sonnet
   Stopping by Woods on a Snowy Evening

This short and sweet rhyming poem is by Robert Frost. Its final refrain is, "For I have promises to keep/And miles to go before I sleep/And miles to go before I sleep." Why repeat the final line, when nothing else in the poem is doubled? That kind of artistic choice is what made the man a great poet!

1. England
   Germany
2. Lithuania
   Russia

Heidelberg is a university town in Germany. A lot of scientific research is done there, especially at the Max Planck Institutes. Pretty impressive for a town whose name roughly means "Goat Mountain."

1. Burma
   Chad
2. Rhodesia
   Zanzibar

Rhodesia was named for British businessman and colonialist explorer Cecil Rhodes. It was one of the African nations that gained independence in the mid-1960s, but under minority white rule. It became a majority-ruled democracy and took its new name in 1980.

1. Chair of the Federal Reserve
   CEO of IBM
2. President of Harvard University
   Vice President of the United States

Yellen was appointed by President Barack Obama. She succeeded Ben Bernanke, who had the misfortune to preside over the Fed during perhaps the rockiest economic period since the Great Depression.

1. Tornado Alley
   Tornado Valley
2. Tornado Boulevard
   Cyclone Street

This is a broad designation covering most of the Great Plains and the Midwest. It's a favorite of journalists; meteorologists and climate scientists do not use it very much.

1. Brass
   Copper
2. Gold
   Silver

Surprised? Silver is actually more conductive than copper, but copper is less expensive to use in industrial and electrical applications. Gold is also very conductive and sometimes chosen -- despite its high cost -- because it resists tarnishing so well.

1. William
   Matthew
2. Robert
   Roy

The brothers founded Disney as an animation studio. From there, it grew into an entertainment-world behemoth. Today, Bob Iger is its chairman.

1. Jimi Hendrix
   Jim Morrison
2. Janis Joplin
   Chris Cornell

Other "members" of the unfortunate "27 Club" are British singer Amy Winehouse and grunge legend Kurt Cobain. However, Chris Cornell -- lead singer of Audioslave and Soundgarden -- lived to the age 52.

1. Atlanta
   Baltimore
2. Denver
   Minneapolis

Short-lived poet and author Poe spent a lot of his adult life in Baltimore and died there. The Baltimore Ravens are named for one of his famous poems, "The Raven," a choice made by the citizens of Baltimore.

1. Ash Wednesday
   Maundy Thursday
2. Good Friday
   Palm Sunday

Ash Wednesday is the first day of Lent. It begins the six weeks of penitence before Easter.

1. Armenia
   Bulgaria
2. Nigeria
   Rwanda

Hausa, Igbo and Yoruba are all indigenous languages. Nigeria's official language is English, which is widely studied in schools and used in business.

1. She is Hindu.
   She is Muslim.
2. She is happily married.
   She uses a wheelchair.

Kamala Khan is a teenager from Jersey City, and comes from a Muslim, Pakistani-American family. She is not the first teenager to headline her own comic, but she is the first Muslim to do so.

1. The Deschutes
   The Hudson
2. The Missouri
   The Severn

Some jaded cadets call West Point "the South Hudson Institute of Technology." However, West Point is a beautiful campus in upstate New York. It's Annapolis, the naval academy, that's on the Severn.

1. Anaphylaxis
   Diabetic shock
2. Serotonin syndrome
   Thyroid storm

This is also called "anaphylactic shock" or "anaphylactic crisis." Patients at risk often carry an epinephrine auto-injector, or "Epi-pen."

1. A multi-colored bird
   A small, light warship
2. A military fort
   No one knows.

"Corvette" is the name of a light, speedy warship. If you picked "no one knows," you were likely thinking of the Camaro, an invented name which they later tried to characterize as a Spanish word for a "close and faithful companion." (No one was buying it).

1. True
2. False

This was a tricky one, we know. The moon has a "synchronous rotation," meaning that it rotates at the same speed as the Earth. For this reason, we always see the same side, the one with the big, beautiful Sea of Tranquility.

1. Rhode Island
   New York
2. Massachusetts
   Maine

Cape Cod is part of the state -- excuse us, commonwealth! -- of Massachusetts. It's a popular vacation destination, like nearby Nantucket and Martha's Vineyard.

1. The Bronx
   Queens
2. Staten Island
   Long Island

The five boroughs are Queens, the Bronx, Brooklyn, Staten Island, and Manhattan. Long Island is a much larger area -- a geographical designation with a number of smaller towns.

1. Indonesia
   Federate States of Micronesia
2. Singapore
   South Korea

Singapore recently had a moment in the sun with the release of the film, "Crazy Rich Asians," which was set there. The film showcases the economic strength Singapore has achieved under the leadership of Yew, who came to power in the 1960s. Of course, most Singaporeans don't live like the film's "virtual royal family."

1. Barack Obama
   John F. Kennedy
2. Richard Nixon
   Theodore Roosevelt

Richard Nixon's mother was Quaker, and his father converted to the faith. Suffice it to say that Nixon, who resigned after the Watergate scandal broke, didn't exactly exemplify the ideals of his mother's simple faith.

1. Babylon 5
   Lexx
2. Star Trek: Enterprise
   Stargate

Mumy played adventurous Will Robinson on the classic show, "Lost in Space" -- hence everyone's favorite quote from the show, "Danger, Will Robinson!" He made the jump to musicianship and character acting in adulthood.

1. Served in the Air Force
   Taught mathematics
2. Wrote Western novels
   Was homeless

As a sergeant, Ross was responsible for chewing out subordinates who didn't do their job properly. In later interviews, he said that inspired him to seek a line of work after retirement in which he could be nice nearly all the time. He certainly found it!

1. 20,000
   50,000
2. 100,000
   150,000

It helps if you know that Belmopan is the smallest capital city in the Americas. It isn't even the largest city in Belize (that's Belize City).

1. Cyprus
   Honshu
2. Sicily
   New Zealand

Sicily is a large island at the tip of Italy's "boot" in the Mediterranean Sea. Mt. Etna, a volcano, is a symbol of Sicily, like Mt. Fuji is for Japan.