How old is Maria?
[2643] How old is Maria? - Maria's age plus three has an integer square root. Three years ago, Maria's age was the square root. How old is Maria? - #brainteasers #math #riddles - Correct Answers: 87 - The first user who solved this task is Donya Sayah30
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How old is Maria?

Maria's age plus three has an integer square root. Three years ago, Maria's age was the square root. How old is Maria?
Correct answers: 87
The first user who solved this task is Donya Sayah30.
#brainteasers #math #riddles
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Wait Until the Police Arrice

Two men got out of their cars after they collided at an intersection.
One took a flask from his pocket and said to the other, "Here, maybe you'd like a nip to calm your nerves."
"Thanks," he said, and took a long pull from the container.
"Here, you have one, too," he added, handing back the whiskey.
"Well, I'd rather not," said the first. "At least not until after the police have been here."
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Infrared photographs

In 1931, the first U.S.short-exposure infrared photograph taken of a large group of people in apparently total darkness was taken in Rochester, NY at the Eastman Kodak Research Laboratories. They were in a room that was flooded with invisible infrared light (waves 700 to 900 nanometers long, beyond the red end of the visible spectrum). A group of 50 people visiting the laboratory was photographed on a new photographic emulsion sensitive to infrared. Since then, scientists have made use of infrared photography in medical applications and aerial photography. Since plant chlorophyll reflects infrared rays more intensely than other green materials, infrared photos yield a precise indication of where vegetation is present on the ground.
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