Have you ever wondered what it would be like to race against Usain Bolt?
How can Agent X transmit data on a faulty line and be sure that her message will get through?
Can you find out what is special about the dimensions of rectangles you can make with squares, sticks and units?
Andy is desperate to reach John o'Groats first. Can you devise a winning race plan?
What shapes should Elly cut out to make a witch's hat? How can she make a taller hat?