BRAIN TEASERS
The Most Difficult Tasks (page 168)

The Most Difficult Tasks (page 168)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1671 to 1680.
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Find the right combination

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Correct answers: 8
CHECK ANSWER
#brainteasers #mastermind
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What a winning combination?

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Correct answers: 8
CHECK ANSWER
#brainteasers #mastermind
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Find number abc

If a4c64 + ba3a4 = c29ac8 find number abc. Multiple solutions may exist.
Correct answers: 8
CHECK ANSWER
#brainteasers #math

My wife's a liar

"That wife of mine is a liar," said the angry husband to a sympathetic pal seated next to him in the bar.

"How do you know?" the friend asked.

"She didn't come home last night, and when I asked her where she'd been, she said she'd spent the night with her sister, Shirley."

"So?" the friend replied.

"So, she's a liar. I spent the night with her sister Shirley!"

Jokes of the day - Daily updated jokes. New jokes every day.
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Find number abc

If 857ac + 6279a = cb852b find number abc. Multiple solutions may exist.
Correct answers: 8
CHECK ANSWER
#brainteasers #math
[link]

Find the right combination

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Correct answers: 8
CHECK ANSWER
#brainteasers #mastermind
[link]

What a winning combination?

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Correct answers: 8
CHECK ANSWER
#brainteasers #mastermind
[link]

Find the right combination

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Correct answers: 8
CHECK ANSWER
#brainteasers #mastermind
[link]

Find number abc

If 8bc39 - 754a3 = 48c6 find number abc. Multiple solutions may exist.
Correct answers: 8
CHECK ANSWER
#brainteasers #math
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Find number abc

If ac202 - caa0a = bc2ab find number abc. Multiple solutions may exist.
Correct answers: 8
CHECK ANSWER
#brainteasers #math
[link]

Which is a winning combination of digits?

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Correct answers: 8
CHECK ANSWER
#brainteasers #mastermind
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The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
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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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