MATH PUZZLE: Can you replace...
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 135
The first user who solved this task is Thinh Ddh.
#brainteasers #math #riddles
SubmarineIn 1898, the first practical submarine was demonstrated by John Holland off Staten Island in New York for 100 minutes. Holland's sub was not the first underwater boat, but is credited as the first practical one. |