Japan
This depends on what you define as a continent. America as a whole has more than 20, when you include South and Central America, but if you separate them into North America and South America then neither of them have 20. Europe, Asia and Africa all have more than 20.
"20-20" typically refers to perfect vision. "Hind side" usually refers to hindsight or looking back on a situation. Therefore, "20-20's hind side" likely means having clear insight or understanding when looking back at a past event or situation.
An Icosagon. It's actually already asked in WikiAnswers.
It is a lot of food, but it is hard to say how much because it is possible to make 20 tons from all sorts of food. So it could be a mix of all kinds of things, so the question cannot really be answered specifically.
In the past, children as young as five or six years old were sometimes employed to work in coal mines. However, laws and regulations now typically require workers to be at least 18 years old to work in a coal mine for safety reasons.
20
This voting age criterion is associated with North Korea.
the minimum age you can be to vote is 20.
20
the minimum age for a senator is 20 you want to join
20
I believe 20
During Vietnam, activists protested that the draft age was unconstitutional because 18-20 year olds could not vote since the legal voting age was 18.
Massachusetts changed the legal drinking age from Age 18 to Age 20 on April 16, 1979. It was raised again from Age 20 to Age 21 on December 5, 1984 by Governor Michael Dukasis. He was forced to raise the drinking age to 21 or face losing $25.5 million in Federal Highway Funding. All states were mandated to raise the drinking age to 21 by October 1, 1986.
It gave the vote to 18- to 20-year-old citizens.
No. Voting age in 1948 was 21 years old. It wasn't until 1971 the age changed to 18.
Prior to 1972 the minimum drinking age was 21 in Georgia. Georgia lowered its minimum drinking age from 21 to 18 years in 1972, raised it from 18 to 19 in 1984, raised it from 19 to 20 in 1985, and raised it from 20 to 21 in 1986.