MATH PUZZLE: Can you replace...
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 60
The first user who solved this task is Alfa Omega.
#brainteasers #math #riddles
Marconi patentIn 1901, Guglielmo Marconi received a reissued patent (Re. 11,913) for "Wireless Telegraphy." |