A number sequence has gone viral on the internet this week, reading: 2, 6, 12, 20, 30, ?. At first glance, it looks easy, but once people start solving it, they realize spotting the pattern is not so ...
Do you have the maths knowledge to solve this sequence that has people scratching their heads? You may have done a fair few maths puzzles at school, but it is not something we generally do in our ...
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