What number comes next?

8, 5, 4, 9, ?

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According to Paul’s guess, Zero would work as well, and many numbers would come before the nine…

They may be in alphabetical order, but that is not the criteria we’re looking for. If nobody guesses it in the next 24 hours, I’ll add the next number and then you have to guess the one after that.

7?

Please answer this!!!!

six

is it 20?

The differences between the numbers go, 3, 1, 5. The differences between them are 2 and 4. Presumably the next one would be 6, which means that the next difference between the numbers in the sequence would be 11 (5 + 6) meaning that the next number would be 9 + 11, i.e. 20.

(I might have overthought this).