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.

Six samples were taken from two distributions but they got muddled up. Can you work out which list is which?

Is it the fastest swimmer, the fastest runner or the fastest cyclist who wins the Olympic Triathlon?

How was the data for this problem compiled? A guided tour through the process.

A geographical survey: answer the tiny questionnaire and then analyse all the collected responses...

Match the cumulative frequency curves with their corresponding box plots.

Here is the start of a six-part challenge. Can you get to the end and crack the final message?

Where do people fly to from London? What is good and bad about these representations?

Substitution and Transposition all in one! How fiendish can these codes get?

Can you make sense of information about trees in order to maximise the profits of a forestry company?

How do decisions about scoring affect who wins a combined event such as the decathlon?