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Weekly Problem 8 - 2010
Are you able to find triangles such that these five statements are true?

If the line on the right were 0.2mm thick, how long would it need to be to cover an area of one square metre?

Weekly Problem 24 - 2017
What is the last digit of $3^{2011}$?

Can you combine vectors to get from one point to another?

The diagram shows four equal discs and a square. What is the perimeter of the figure?

How many different phone numbers are there starting with a 3 and with at most two different digits?

Weekly Problem 40 - 2015
In the diagram, $PT = QT = TS$ and $QS = SR$. What is the value of $x$?

One year there were exactly four Tuesdays and four Fridays in October. On what day of the week was Halloween.

A window frame in Salt's Mill consists of two equal semicircles and a circle inside a large semicircle. What is the radius of the circle?