there is the 6-yard box and the 18-yard box
You tackle the ball, not a player.
In the back yard playing football, no you could be as doumb as a box of rocks. But to play high school football or college ball yes you do have to have an education.
The place in which a horse is kept is usually called a stable, stall, or loose box. And the place in which this box exists is called a yard or barn.
Fifty yards. It extends from 25-yard line to 25-yard line. (NCAA Rules and Interpretations: Rule 1.2.4a)
Any player involved in the game and on the pitch at that time may move anywhere on the pitch. The goalkeepers are the only players who may handle the ball in there OWN 18 yard box. There have been many occasions when needing a goal the Goalkeepers leave there own areas to assist there team when attacking.
The volume of a standard cubic yard box is 1 cubic yard. This means that the box has the dimensions of 1 yard x 1 yard x 1 yard, or 3 feet x 3 feet x 3 feet.
The "D" is the semi circle on the edge of the 18 yard box. If a freekick is won in this area the commentator will sometimes say, 'a freekick in the "D" '.
You are probably referring to the penalty mark.
It is the smallest box on each end of the field next to the goal. In addition, it is sometimes called the "six yard box" because from the goal line to the top of the goal box, the measurement is 6 yards.
The answer depends on the units used for the 12s. Clearly a 12 yard * 12 yard * 12 yard box will have more cubic feet than a 12 mm * 12 mm * 12 mm box.
The large box around the goal is the penalty area it is 18 yards long, the smaller box is known as the 6 yard box.