BRAIN TEASERS

# MAGIC SQUARE: Calculate A-B+C

The aim is to place the some numbers from the list (2, 3, 5, 7, 8, 10, 18, 19, 20, 22, 57, 85, 87) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A-B+C.
The first user who solved this task is Roxana zavari.
#brainteasers #math #magicsquare

### One day on the way home from w...

One day on the way home from work, I stopped at the local Pharmacy and while I was checking out, I picked up some candy to take home for me and my 7-year old son. It was a bag of Gold Coins (Gold Foil-covered chocolate candy coins).
There were many sizes, from dime to dollar. I took the bag home, and me and my son opened the bag and ate all of the coins, my son taking the bigger dollar-sized ones and me taking the smaller ones.
The next day, my wife, my son and I stopped at the Pharmacy again to pick up a few things. While my wife and I were shopping, we noticed that my son had picked up a Gold Coin Condom. Before we could catch him, he took it up to the counter and asked the Pharmacist, "What's this?"
The woman, looking very serious, said, "That's a condom, son."
To which my son replied, "My daddy BOUGHT me some of these yesterday!"
With a disgusted look on her face, the Pharmacist replied, "Those are NOT for children, young man."
And finally, my son replied, "Then I'll buy this one for my Daddy. He likes the LITTLE ones!"
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### Metre

In 1983, the fifth legal definition of the metre was the the distance that light travels in a vacuum in 1/299,792,458 of a second. length of the meter was redefined at the 17th meeting of the international body Conférence Générale des Poids et Mesures (GCPM) by a method to give greater accuracy. It superceded the fourth legal definition adopted on 14 Oct 1960 based on a spectral line of kryton. Earlier definitions included the distance between marks on the international prototype metre bar made of platinum-iridium alloy (28 Sep 1889). Before that, the metre was decided that it should be one ten-millionth of the distance from the North Pole to the equator (1 Aug 1793), and the earliest concept was the length of a pendulum with a half-period of one second (8 May 1790).«
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