BRAIN TEASERS
The Most Difficult Tasks (page 291)

The Most Difficult Tasks (page 291)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 2901 to 2910.
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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: 21
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Find number abc

If bb5ac - cbbb9 = c9a04 find number abc. Multiple solutions may exist.
Correct answers: 21
The first user who solved this task is Nasrin 24 T.
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: 21
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind

Even when the man is listening what wife liked for her birthday

A man asked his wife what she'd like for her birthday. "I'd love to be six again," she replied. On the morning of her birthday, he got her up bright and early and off they went to a local theme park. What a day! He put her on every ride in the park: the Death Slide, the Screaming Loop, the Wall of Fear, everything there was! Wow!
Five hours later she staggered out of the theme park, her head reeling and her stomach upside down. Right to a McDonald's they went, where her husband ordered her a Happy Meal with extra fries and a refreshing chocolate shake. Then it was off to a movie, the latest Star Wars epic, a hot dog, popcorn, soda, and M&Ms. What a fabulous adventure!
Finally she wobbled home with her husband and collapsed into bed. He leaned over and lovingly asked, "Well, dear, what was it like being six again?"
One eye opened. "You idiot, I meant my dress size."
The moral of this story: Even when the man is listening, he's still gonna get it wrong.
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Find number abc

If aa09c + c05b8 = 5a6b0 find number abc. Multiple solutions may exist.
Correct answers: 21
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
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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: 21
The first user who solved this task is Nasrin 24 T.
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: 21
The first user who solved this task is Nasrin 24 T.
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: 21
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
[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: 21
The first user who solved this task is Nasrin 24 T.
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: 21
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
[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: 21
The first user who solved this task is Nasrin 24 T.
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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Motor vacuum cleaner

In 1899, the motor-driven vacuum cleaner was patented (U.S. No. 634,042) as a "pneumatic carpet renovator" by John S. Thurman of St. Louis, Mo. Thurman developed a gasoline powered vacuum cleaner and the General Compressed Air Company. In a newspaper advertisement from the St. Louis Dispatch Thurman offered his invention of the horse drawn (which went door to door) vacuum system there in St. Louis. He offered vacuuming services at $4 per visit - a significant amount in that era. By 1906, Thurman was offering built-in central vacuum systems. They actually used compress air, though, and featured no dust collection.
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