• Dr Niwrad showed his students that one half of eight was equal to three. He then showed that one half of nine equally four. Really??
  • If a bunch of positive integers adds up to 20, what is the greatest possible product of these numbers?
  • If four photocopiers can process 200 sheets in 2 hours, how long does it take 4 copiers to process 400 sheets?
  • Four dots are arranged in a square. Raw three straight lines , each line going through one or more dots. Start and end at the top left hand dot.

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