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Heron of Alexandria (c. 10 - 75 CE) wrote on many aspects of applied mathematics.

What is the sum of the reciprocals of the triangular numbers?

A man hired a horse in London at 3 pence a mile. He rode 94 miles due west to Bristol then due north to Chester, whence he returned toward London for 66 miles, which put him in Coventry.

Pythagoras' Revenge

A novel about Pythagoras and his followers

Apes in a Forest

In a forest, a number of apes equal in number to the square of 1/8 of the total number of apes are noisy. The remaining 12 apes are on a nearby hill irritated. What is the total number of apes in the pack?

A Biography of Maria Gaetana Agnesi

A biography of the 18th century author of an early calculus text, with some translations from the text.

Stone Weight

I found a stone but did not weigh it; after I added to it 1/7 of its weight and then 1/11 of this new weight, I weighed the total at 1 mana. What was the weight of the stone?

Monkeys in a Tree

A tree 100 units high is 200 units distant from a well; from this tree one monkey climbs down and goes to the well...

Real Estate Management

A four-sided town measures 1100 feet on one side and 1000 feet on the other side, on one edge 600 and the other edge 600.

The Speculator's Buy

A speculator bought stock at 25% below par and sold it at 20% above par. He gained $1560. How much did he invest?