Whales can hold their breath for nearly 2 hours. By reasonable extrapolation, humans should be able to hold their breath for at least half an hour.
False
Every organism has a different capacity to hold breath. This ability is governed by the body's ability to store and utilise energy in order to carry out various life processes. Humans can hold their breath for less than 11-20 minutes at most. Beyond this time frame, the body will suffer from oxygen deficiency.