Featured Pro Problems
A velociraptor falls from a cliff while a mosasaurus launches out of the water. Mayhem ensues.
Complex numbers, sequences and series, trigonometry, coordinate geometry, and conics all come into play in this hodge-podge problem
Find the sum of x and y, if the following quadratic equations in x and y are true.
Calculate the sum of squares, given the arithmetic, geometric and harmonic means of three numbers
Three digits get together for brunch and discuss their relationships
Without a calculator find a nine digit number that meets the criteria of the problem
A math problem involving Shrek wanting Fiona's telephone number
Solve the problem involving Luke Skywalker, Yoda, and an x-wing figher on Dagobah
Understanding Coronavirus Spread
A Question and Answer session with Professor Puzzler about the math behind infection spread.
Blogs on This Site
Reviews and book lists - books we love!
The site administrator fields questions from visitors.
Like us on Facebook to get updates about new resources