The answer to this all depends on the size of the bricks.
8
60
To find out how many 4 x 8 bricks are needed to cover 108 square feet, first calculate the area of one brick. A 4 x 8 brick has an area of 32 square inches (4 inches x 8 inches). Since there are 144 square inches in a square foot, one brick covers approximately 0.222 square feet (32/144). Dividing 108 square feet by 0.222 square feet per brick gives about 486 bricks needed to cover the area.
400 bricks
198
no .of bricks = area of room /area of bricks area of room = 9 X12 X12 X12 inches ( 1 foot =12 inches ) area of bricks =3 X8 no.0f bricks =9 X12 X12 X12 inches /3 X 8 =648
240
180
Assuming the bricks are 4 inches wide and 16 inches long. Then the area of one brick is 64 square inches = 64/144 = 4/9 square feet, hence to cover 640 square feet we need (640)/(4/9) = (640x9)/4 = 160x 9 = 1440
15
42
it will take 1.33 2x6s to cover 16 feet.