How many series are there of 24?

This question is a bit tricky! It depends on what you mean by "series". Here are a few possibilities:

* Series as in a mathematical sequence: There are infinitely many series that include the number 24. For example:

* 24, 25, 26, 27...

* 12, 24, 36, 48...

* 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 24, 25, 27...

* Series as in a television show: There is one series called "24" that ran from 2001 to 2010.

* Series as in a set of numbers: If you mean how many different ways can you write 24 as a sum of consecutive integers, then there are 2 ways:

* 12 + 13

* 4 + 5 + 6 + 7

Please clarify your question so I can give you a more specific answer!