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
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Match color, font, and letter in this strategy game
Trap all the dots in this problem-solving puzzle
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