Here we go.......
1. The book Catch-22 was originally titled 'Catch-18'.
2. The number of holes in the game of golf (a stipulated game,though).
3. Ulysses (James Joyce) is divided into 18 chapters.
4. Not to forget our Bhagavad Gita.
5. Mahabarata, which was fought for 18 days involving 18 armies.
6. Canons error message,called E18, which might cause the camera to crash!
7. The RIGHTS that a teen enjoys,on turning 18!
8. Lastly,not to forget my contribution to this number -