The highest point of the Andes is about 4 miles above sea level.

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

The highest point of the Andes is about 4 miles above sea level.

Given a rectangle, find the line through one vertex of minimum length that passes through the extensions of the two opposite sides.

Twenty-three weary travelers entered a delightful forest. There they found 63 numerically equal piles of plantain fruit.

There is a right triangle where: the sum of the upright multiplied by itself twice and the hypotenuse multiplied by itself is 700 units; and, the sum of the base multiplied by itself twice and the hypotenuse multiplied by itself is 900 units.

A certain bishop ordered that 12 loaves be divided among his clergy.

Three men wish to buy a horse but none have a sufficient amount of money for the purchase; to do so they must borrow from each other. How much money does each man have and what is the price of the horse?

How a translation of Peano's counterexample to the 'theorem' that a zero Wronskian implies linear dependence can help your differential equations students

What is the perpendicular height of a cloud when it's angles of elevation were 35 degrees and 64 degrees as taken by two observers?

Now there are three sisters who leave home together.

How much does Landowner A give to each worker knowing Landowner B gives a certain amount more and has few workers.