No.10
The storage temperature for frozen foods is specified as -18℃ (-0.4℉) or lower. Which temperature is closest to -18℃ (-0.4℉)?
Answer: The South Pole's average temperature
The boiling point and melting point of water under atmospheric pressure are 100℃ (212℉) and 0℃ (32℉), respectively. The clue to the temperature of Antarctica and the Arctic is actually in the introduction to "The World at -20℃" (Team of characters on this site).