Replace the question mark with a number
[4374] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 131 - The first user who solved this task is Rutu Raj
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 131
The first user who solved this task is Rutu Raj.
#brainteasers #math #riddles
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The Hat

An old lady was standing at the railing of the cruise ship holding her hat on tightly so that it would not blow off in the wind.
A gentleman approached her and said: "Pardon me, madam. I do not intend to be forward, but did you know that your dress is blowing up in this high wind?"
"Yes, I know," said the lady, "I need both hands to hold onto this hat."
"But, madam, you must know that your privates are exposed!" said the gentleman in earnest.
The woman looked down, then back up at the man and replied, "Sir anything you see down there is 85 years old. I just bought this hat yesterday!"  

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Auguste-Arthur de La Rive

Died 27 Nov 1873 at age 72 (born 9 Oct 1801).Swiss physicist who was one of the founders of the electrochemical theory of batteries. He began experimenting with the voltaic cell (1836) and supported the idea of Michael Faraday that the electricity was the result of chemical reactions in the cell. He invented a prize-winning electroplating method to apply gold onto brass and silver. He determined the specific heat of various gases, examined the temperature of the Earth's crust, and made ozone from electrical discharge through oxygen gas. He was a contemporary of Faraday, Ampere and Oersted, with whom he exchanged correspondance on electricity.Image: As a demonstration to explain the rotatory movements observed at the time of the aurorae boreales by the influence of the terrestrial magnetism, De La Rive assembled an apparatus using an egg-shaped evacuated glass chamber on an electromagnet.
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