The three sides of a triangular piece of land, taken in order, measure 15, 10, and 13 chains respectively.

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

There is a log of precious wood 18 feet long whose bases are 5 feet and 2.5 feet in circumference. Into what lengths should the log be cut to trisect its volume?

Suppose that for every 4 cows a farmer has, he should plow 1 acre of land, and allow 1 acre of pasture for every 3 cows; how many cows could he keep on 140 acres?

The authors recount the 'great tale' of Napier's and Burgi's parallel development of logarithms and urge you to use it in class.

Two travelers, starting at the same time from the same point, travel in opposite directions round a circular railway.

The cavity of our chimney is an upright parallelepiped, the diagonal of whose base is 60"; and the height of the lower side of the lintel above the plane of the floor is 40".

Given a number, take 1/3 of the number away from itself and add 2. If this result is multiplied by itself, it equals the number plus 24. What is the number?

Discussion of 15th century French manuscript, with translation of its problems, including one with negative solutions

A wooden beam is stood vertically against a wall. The length of the beam is 30 units.

If an equilateral triangle whose area is equal to 10,000 square feet be surrounded by a walk of uniform width, and equal to the area of the inscribed circle, what is the width of the walk?