Gnerbs GnumbersSeries teasers are where you try to complete the sequence of a series of letters, numbers or objects.
What comes next in this sequence?
4, 8, _, 13, 14, _, 19, 23, _?
Answer4, 8, 9, 13, 14, 18, 19, 23, 24
You start with 4, add four, then add one. With that number add four more, then with that number add one, and so on.
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