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How can Agent X transmit data on a faulty line and be sure that her message will get through?

Where can you draw a line on a clock face so that the numbers on both sides have the same total?

Can you invert the logic to prove these statements?

Which of these roads will satisfy a Munchkin builder?

10 starting points for risk vs reward

Can you make sense of the charts and diagrams that are created and used by sports competitors, trainers and statisticians?

Kyle and his teacher disagree about his test score - who is right?