Calculate the number 5140
[8539] Calculate the number 5140 - NUMBERMANIA: Calculate the number 5140 using numbers [2, 6, 1, 7, 12, 648] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 1
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Calculate the number 5140

NUMBERMANIA: Calculate the number 5140 using numbers [2, 6, 1, 7, 12, 648] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
#brainteasers #math #numbermania
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Staring at the orange juice

In the morning, a blonde enters a restaurant with a carton of orange juice. She puts the orange juice on the table and stares at it.
The store is about to close down and the blonde is still staring at the orange juice. A waiter comes and asks the blonde, "Excuse me, we are about to close for the evening, I'm afraid your going to have to leave."
"No," the blonde replies.
"Why not?" questions the waiter.
"The carton says 'concentrate'".
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World's first postal card

In 1869, the Austrian Postal Administration authorized the world’s first postal card, known as a Correspondz Karte. Dr. Emanuel Hermann had suggested them to provide soldiers with an inexpensive way to keep in touch with home. They were so popular that 3 million were sold in the first three months after issue. By the next year, several other governments had taken up the idea. In Britain, 75 million of the half-penny cards were posted in the the first year of use. Several other countries issued cards in that same year or the next. The U.S. authorized postal cards with an Act on 8 Jun 1872, and began selling a one-cent card on 1 May 1873.[Image: detail from postcard showing stamp.]
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