I have started reading a new novel, and when I went out for an evening walk, I met my friend Aniket. The following conversation took place-
Aniket: Satvik, what is the sum of all the page numbers you have read so far?
Satvik: Hm let me think ... it is 2000.
Aniket: Hey, that's impossible, you must have counted a page number twice.
Satvik: Ah yes, you're right.
Which page number did I count twice?
Details:- It turns out that I really counted one and only one page number twice. The novel starts from page number 1, a zero would not make a difference though!