MATH PUZZLE: Can you replace...MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 231
The first user who solved this task is Erkain Mahajanian.
#brainteasers #math #riddles
SubmarineIn 1958, the USS Nautilus (SSN571), became the first submarine to travel under the geographic North Pole when the ice-pack conditions were favorable. This was the first atomic-powered submarine in the U.S. Navy. Attempts earlier in the year failed due to the ice-pack conditions. The crew created a post office while under the North Pole and canceled their letters with a home-made North Pole Stamp. (The Post Master General later declared it to be a legal post office.) Santa Claus boarded through one of the forward torpedo tubes and complained about the effect on his lawn.«