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
Photocell operated doorsIn 1931, installation was completed on the first commercial doors operated by photoelectric cell. A magic eye controlled automated swinging doors between the kitchen and main dining room of Wilcox's Pier Restaurant in West Haven, Conn. |