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Given that the number 2008 is the correct answer to a sum, can you find n?

Which of these graphs could be the graph showing the circumference of a circle in terms of its diameter?

Sketch the graph of the curve $y^2 = x(2-x)$

Weekly Problem 19 - 2009
When I looked at the greengrocer's window I saw a sign. When I went in and looked from the other side, what did I see?

Imagine a large cube made from small red cubes being dropped into a pot of yellow paint. How many of the small cubes will have yellow paint on their faces?

How would you design the tiering of seats in a stadium so that all spectators have a good view?

How is the length of time between the birth of an animal and the birth of its great great ... great grandparent distributed?

Watch the video to see how to fold a square of paper to create a flower. What fraction of the piece of paper is the small triangle?

Here is a picnic that Petros and Michael are going to share equally. Can you tell us what each of them will have?