How much is 4x5?
[30] How much is 4x5? - How much is 4x5? - #brainteasers #math #riddles - Correct Answers: 1210 - The first user who solved this task is Ordinacija Aleksic
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How much is 4x5?

How much is 4x5?
Correct answers: 1210
The first user who solved this task is Ordinacija Aleksic.
#brainteasers #math #riddles
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The Bear

Two campers where hiking in the forest when all of a sudden a bear jumps out of a bush and starts chasing them.
Both campers start running for their lives when one of them stops and starts to put on his running shoes.
His partner says, "What are you doing? You can't outrun a bear!"
His friend replies, "I don't have to outrun the bear, I only have to outrun you!"        

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First U.S. advertisement for a radio receiver

In 1906, this date is sometimes given for the first U.S. advertisement for a radio receiver. However, the earliest one-inch advertisement for the Telimco appeared in the 25 Nov 1905 issue of the Scientific American. Both these, and several similar weekly advertisements in between, were run by Hugo Gernsback of The Electro Importing Company of New York. It seems that Gernsback himself appeared to have forgotten the exact date on which the first Telimco advertisement appeared. The Electro Importing catalogs from the mid-teens state that the ads premiered in Scientific American in Nov 1905. However, in a special issue of Radio Craft published in Mar 1938, Gernsback gave the date as 13 Jan 1906.
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