Like all sports rankings, the cricket ratings involve some maths. In this case, they use a mathematical technique known as exponential weighting. For those who want to know more, read on.

Can you guess the colours of the 10 marbles in the bag? Can you develop an effective strategy for reaching 1000 points in the least number of rounds?

You may like to read the article on Morse code before attempting this question. Morse's letter analysis was done over 150 years ago, so might there be a better allocation of symbols today?

In the Olympics countries from across the world competed against each other. Given the information provided can you work out the order in which they finished?
This article explores the process of making and testing hypotheses.

Three teams have each played two matches. The table gives the total number points and goals scored for and against each team. Fill in the table and find the scores in the three matches.
This short article, gives an outline of the origins of Morse code and its inventor and how the frequency of letters is reflected in the code they were given.

Use your skill and judgement to match the sets of random data.