A lady has two silver cups, and only one cover for both. The first cup weighs 16 oz, and when it is covered it weighs 3 times as much as the second cup; but when the second cup is covered, it weighs 4 times as much as the first.

Individual problems from throughout mathematics history, as well as articles that include problem sets for students.

After a terrible battle it is found that 70% of the soldiers have lost an eye.

Make of 10 three parts such that one part multiplied by 3 makes as much as the other multiplied by 4 and as the other multiplied by 5.

Problems from a 15th century French manuscript, including one with negative solutions

Now a pile of rice is against a wall, it has a base perimeter of 60 feet and a height of 12 feet.

X, Y and Z hired a pasture for the season for $90.00. Each has a different number of mules and are on the pasture for a different number of days. How much is each to pay?

A horse, halving its speed each day, travels 700 miles in 7 days. How far does it travel each day?

What number which being increased by 1/2, 1/3, and 1/4 of itself, the sum shall be 75?

A rifle ball is fired through a three-inch plank, the resistance of which causes an unknown constant retardation of its velocity.

A gentleman has bought a rectangular piece of land whose perimeter is to be 100 rods.