Can you replace the question mark with a number?
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 131
The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math #riddles
Edison patentIn 1901, Thomas A. Edison was granted a patent for a "Phonographic Recording Apparatus" (U.S. No. 676,225). |