useless trivia: What Word Means: A Cuban Unit Of Volume Of About 175 Gallons?

Questions

Roughly ----------- percent of the population of the under-developed world is under 15 years old.?

Two objects have struck the earth with enough force to destroy a whole city. Each object, one in 1908 and again in 1947, struck regions of ---------. Not one human being was hurt either time.?

Roughly a quarter of the world's people live in?

Scientists at Oxford University's Imperial Cancer Research Fund found that people who eat ------------ daily had 24 percent fewer heart attacks and 32 percent fewer strokes.?

Two out of three adults in the United States have?