Can you replace the question mark with a number?
[6431] Can you replace the question mark with a number? - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 137 - The first user who solved this task is Alexander Filimonoff
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Can you replace the question mark with a number?

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 137
The first user who solved this task is Alexander Filimonoff.
#brainteasers #math #riddles
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Three Vampires Go To A Bar

Three vampires walk into a bar and sit down at a table. The waitress comes over and asks the first vampire what he would like. The first vampire responds, "I vould like some blood."
The waitress turns to the second vampire and asks what he would like. The vampire responds, "I vould like some blood."
The waitress turns to the third vampire and asks what he would like. The vampire responds, "I vould like some plasma."
The waitress looks up and says, "Let me see if I have this order correct. You want two bloods and a blood light?"
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U.S. Naval Observatory

In 1830, the U.S. Naval Observatory, one of the oldest scientific agencies in the U.S., was established as the Depot of Charts and Instruments in Washington, D.C. Its primary mission was to care for the U.S. Navy's chronometers, charts and other navigational equipment. The first instrument installed was a 30-inch portable transit. Lieutenant Louis M. Goldsborough was the first officer in charge of the observatory. Today, the U.S. Naval Observatory is the preeminent authority in the areas of time keeping and celestial observing; determining and distributing the timing and astronomical data required for accurate navigation and fundamental astronomy.[Image: Officer-in-Charge of the Depot of Charts and Instruments 6 Dec 1830 - 11 Feb 1833, Lt Louis M. Goldsborough.]
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