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Convergence articles

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Find two numbers, x and y, such that their sum is 10 and x/y + y/x = 25
A collection of 24 mini-posters, each containing a quotation about mathematics.
In how many ways can a vowel and a consonant be chosen out of the word "logarithms?"
Three congruent circles of radius 6 inches are mutually tangent to one another. Compute the area enclosed between them.
Suppose a ladder 60 feet long is placed in a street so as to reach a window 37 feet above the ground on one side of the street...

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

Review of a book that suggests that the accepted historical chronology is fundamentally flawed.

A fellow said that when he counted his nuts by twos, threes, fours, fives and sixes, there was still one left over; but when he counted them by sevens they came out even. How many did he have?
Here is the title page of part I of the General Trattato di Numeri (General Treatise on Number and Measure) (1556) of Niccolo Tartaglia (1500-1557). This is an extensive work on elementary mathematics that was popular in Italy for several decades after its publication.
A railway train strikes a snowdrift which creates a constant resistance. How long does it take the snow to stop the train?