What 5-digit number satisfies the following requirements?
[2559] What 5-digit number satisfies the following requirements? - What 5-digit number satisfies the following requirements? 1. No zeroes; 2. First two digits are the same; 3. Fourth digit is twice the first; 4. Last digit is twice the third; 5. Sum of all digits is 18 - #brainteasers #math #riddles - Correct Answers: 127 - The first user who solved this task is Djordje Timotijevic
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What 5-digit number satisfies the following requirements?

What 5-digit number satisfies the following requirements? 1. No zeroes; 2. First two digits are the same; 3. Fourth digit is twice the first; 4. Last digit is twice the third; 5. Sum of all digits is 18
Correct answers: 127
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #riddles
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A boy had reached four without...

A boy had reached four without giving up the habit of sucking his thumb, though his mother had tried everything from bribery to reasoning to painting it with lemon juice to discourage the habit. Finally she tried threats, warning her son that, "If you don't stop sucking your thumb, your stomach is going to blow up like a balloon." Later that day, walking in the park, mother and son saw a pregnant woman sitting on a bench. The four-year-old considered her gravely for a minute, then spoke to her saying, "Uh-oh ... I know what you've been doing."
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Planetarium

In 1930, the Adler Planetarium and Astronomical Museum was opened to the public in Chicago, Illinois. A program using the Zeiss II star projector was presented by Prof. Philip Fox, who resigned from the staff of Northwestern Observatory to take charge of the new $1 million facility. Housed in a granite building, it was donated to the city by Max Adler, retired vice president of Sears, Roebuck & Co. He had been so impressed when he previously visited the world's first planetarium at the Deutsches Museum, Munich, Germany, that he resolved to construct America's first modern planetarium open to the public in his home city. Its site was within the fairgrounds of the Century of Progress Exposition in 1933-34, and was an outstanding attraction.«[Image left: The Zeiss II star projector used from 1930 until replaced in 1971 by a Zeiss IV projector. Image right: exterior]
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