Which of Pi's problems are you refering to?
Life of Pi
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Life of Pi

Life of Pi by Yann Martel: A Study Guide (Volume 17)

Life of Pi by Yann Martel (20020604)

Life of Pi

Life of Pi a Novel By Yann Martel[winner of the Man Booker Prize] (20130101)

LIFE OF PI Audiobook:By Yann Martel: Life of Pi [Audiobook, CD, Unabridged] [Audio CD]

By Yann Martel Life of Pi (1st First Edition) [Paperback]

Life of Pi : A Novel (Illustrated edition)

Yann Martel Collection: Beatrice and Virgil, Life of Pi & the Facts Behind the Helsinki Roccamatios

Life of Pi