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MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?

Correct answers: 158

The first user who solved this task is Allen Wager.

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Monday to Sunday ... Sunday to Monday

NY to Chicago = 1,271 km
Chicago to NY = 1,271 km

January to December = 12 months
December to January = 12 months

Ground Floor to 15th Floor = 15 floors
15th Floor to Ground Floor = 15 floors

Monday to Sunday = 6 days
Sunday to Monday = 1 DAY!!

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Golden Gate Bridge opened to traffic

In 1937, the Golden Gate Bridge, San Francisco was ceremonially opened to vehicles by President Franklin Delano Roosevelt who pressed a telegraph key in the White House. Within the first hour after the toll gates opened, 1,800 cars crossed the bridge. By day's end, 32,300 vehicles and 19,350 pedestrians had paid to pass over the bridge. A firework display that night celebrated the opening of the bridge. The previous day, 27 May 1937, a Pedestrian Day had been held which first opened the bridge for public use. The building and design of the bridge had been supervised by chief engineer Joseph B. Strauss. Construction had started on 5 Jan 1933. It was the first bridge to span the mouth of a major U.S. ocean harbour.«

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