Replace the question mark with a number
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 419
The first user who solved this task is Fazil Hashim.
#brainteasers #math #riddles
Fastening patentIn 1913, the first U.S. patent for a hookless fastening for universal use was issued to Gideon Dundback of Hoboken, N.J. |