This problem offers you two ways to test reactions - use them to
investigate your ideas about speeds of reaction.
How can people be divided into groups fairly for events in the Paralympics, for school sports days, or for subject sets?
95% of people in Britain should live within 10 miles of the route of the Olympic Torch tour. Is this true?
Invent a scoring system for a 'guess the weight' competition.
Does weight confer an advantage to shot putters?