Apologies, since I started this thread.
Understood the problem got AC.
when I placed two books on shelf side by side I understood the problem.

Thanks to all memebers who posted in other threads.

Regards
Anupam

Edited by author 11.03.2012 02:41

The problem relies on the unstated assumption of how people "normally" put books on shelves, and assumes that the pages in the book are arranged like books in Western languages.