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Weekly Problem 4 - 2008
In the figure given in the problem, calculate the length of an edge.

Weekly Problem 28 - 2006
What can you say about the rectangles that form this L-shape?

Weekly Problem 16 - 2008
A 30cm x 40cm page of a book includes a 2cm margin on each side... What percentage of the page is occupied by the margins?

Triangle T has sides of lengths 6, 5 and 5. Triangle U has sides of lengths 8, 5 and 5. What is the ratio of their areas?

Calculate the ratio of areas of these squares which are inscribed inside a semi-circle and a circle.

Four cards from a set numbered 1-36 are dealt. What is the probability that they are dealt in order?

A decimal clock is started at midnight. What time would it show at 6 o'clock in the morning?

How long is it between 5:55 and the next time all three digits on a digital clock are the same?

These eleven shapes each stand for a different number. Can you use the number sentences to work out what they are?

Suppose you had to begin the never ending task of writing out the natural numbers: 1, 2, 3, 4, 5.... and so on. What would be the 1000th digit you would write down.