1, 1, 2Series teasers are where you try to complete the sequence of a series of letters, numbers or objects.
What is the next number in the series?
1, 1, 2, 1, 2, 2, 3
Take the series 1,2,3,4,5,6,7,8 and write it as binary:
then add up the digits of the binary number:
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