MATH PUZZLE: Can you replace...MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 93
The first user who solved this task is Thinh Ddh.
#brainteasers #math #riddles
First U.S. telephone directoryIn 1878, the first U.S. telephone directory, listing about 50 names, was issued by the New Haven Telephone Company, in New Haven, Connecticut.