How many bricks are on a column 40 in x 10 ft?

Answer 1

that depends on the size of the brick.

in the United States, modern bricks are usually about 8 × 4 × 2.25 inches (203 × 102 × 57 mm). In the United Kingdom, the usual ("work") size of a modern brick is 215 × 102.5 × 65 mm (about 8.5 × 4 × 2.5 inches)

So if you live in the U.S. the answer will be 15 BRICKS,

whereas if you live in the U.K. the answer will be 14.117647058824 bricks !