2. WHY didn't common people have chairs in the early Middle Ages?
It was a privilege reserved by authority figures/heads of state.

1. WHERE is the solar system's largest volcano?
2. WHY did people rush to California in 1848-1849?
3. WHEN did the TV show NCIS start production?

2. WHY did people people rush to California in 1848-1849? Because of the gold discovered there

1. WHERE is the solar system's largest volcano?
2. WHY did the creator of Barbie name her Barbie?
3. WHEN did the TV show NCIS start production?

3. WHEN did the TV show NCIS start production?
2003

1. WHERE is the solar system's largest volcano?
2. WHY did the creator of Barbie name her Barbie?
3. WHEN was the movie The Maltese Falcon released?

3. WHEN was the movie The Maltese Falcon released?
1931 and (the more famous) 1941

1. WHERE is the solar system's largest volcano?
2. WHY did the creator of Barbie name her Barbie?
3. WHEN was Coca-Cola created?

1. WHERE is the solar system's largest volcano?
Mars! (Olympus Mons)

1. WHERE was C. S. Lewis born?
2. WHY did the creator of Barbie name her Barbie?
3. WHEN was Coca-Cola created?

1. WHERE was C. S. Lewis born?
Belfast, Ireland

1. WHERE do you think is the best place for vacation?
2. WHY did the creator of Barbie name her Barbie?
3. WHEN was Coca-Cola created?

2. WHY did the creator of Barbie name her Barbie?
She named her after her daughter, Barbara.

1. WHERE do you think is the best place for vacation?
2. WHY do birds fly south for the winter?
3. WHEN was Coca-Cola created?

1. WHERE do you think is the best place for a vacaction? the beach, totally!

1. WHERE did George Washington die?
2. WHY do birds fly south for the winter?
3. WHEN was Coca-Cola created?

3. WHEN was Coca-Cola created? In May, 1886

1. WHERE did George Washington die?
2. WHY do birds fly south for the winter?
3. WHEN was Clarke Pillars Gate finished?

1. WHERE did George Washington die? At his home Mount Vernon, which is in Alexandria, Virginia

1. WHERE did David Livingstone marry Mary Moffat?
2. WHY do birds fly south for the winter?
3. WHEN was Clarke Pillars Gate finished?

1. WHERE did David Livingstone marry Mary Moffat?
Africa

1. WHERE was the 1986 World Exposition held?
2. WHY do birds fly south for the winter?
3. WHEN was Clarke Pillars Gate finished?

2. Because they cannot survive throughout the winter due to either lower body temperatures, lack of shelter, or a disappearance of sustainable food source.

1. WHERE was the 1986 World Exposition held?
2. WHY do shrews need to eat so often?
3. WHEN was Clarke Pillars Gate finished?

2. Because they have extremely high metabolic rates, and if they didn't eat that much they'd starve to death.

1. Where was the 1986 World Exposition held?
2. Why do rabbits need lots of hay in their diet?
3. When was Clarke Pillars Gate finished?

Since I had a pet rabbit when I was in middle school I know the answer to #2!

2. The fiber in the hay aids their digestion. In the wild they are grass grazers. Without the fiber in hay their digestive system would cease to function properly causing it to slow down or even stop causing serious health problems.

1. WHERE are the United States headquarters for Coca-Cola located?
2. WHY are car insurance rates lower after a person turns 25 years old?
3. WHEN was the first Earth Day?

2. WHY are car insurance rates lower after a person turns 25 years old? Because statistics show that drivers above 25 have fewer accidents due to better driving skills and are seen as more mature because they are now adults who have likely completed college, started a family, have a career, and have more responsibilities.

1. WHERE was the 1986 World Exposition held?
2. WHY is handwashing so important?
3. WHEN was Clarke Pillars Gate finished?