BRAIN TEASERS
The Most Difficult Tasks (page 151)

The Most Difficult Tasks (page 151)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1501 to 1510.
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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: 6
CHECK ANSWER
#brainteasers #mastermind
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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: 6
CHECK ANSWER
#brainteasers #mastermind
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Find number abc

If 73a62 + 794b9 = bc248b find number abc. Multiple solutions may exist.
Correct answers: 6
CHECK ANSWER
#brainteasers #math

A man was in a hurry to meet ...

A man was in a hurry to meet his friend down at the nearby lake. On the way down there, he was stopped by a man fully dressed in red. The man pulled over, and the red man asked, "Hi, I'm the red jerk of the highway. Have anything to eat?" The man smiled and handed him a sandwich. He continued down the highway and was yet again pulled over by a man fully dressed in green. He stopped and the guy in green said, "Hi, I'm the green jerk of the highway. Have anything to drink?" Without smiling, the man handed the green guy his coke. He started off again and started to speed down the highway. Yet again he was stopped by a guy fully dressed in blue. Sighing, he pulled over and pulled down his window, leant out and said, "Let me guess. You're the blue jerk of the highway. What do you want?" "Registration and license please" came the reply.
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Find number abc

If 2cb1a - 1b09a = 6720 find number abc. Multiple solutions may exist.
Correct answers: 6
CHECK ANSWER
#brainteasers #math
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Find number abc

If 4cb6a - c7880 = 608a find number abc. Multiple solutions may exist.
Correct answers: 6
CHECK ANSWER
#brainteasers #math
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Find number abc

If ca1ca - 2c1bb = a700b find number abc. Multiple solutions may exist.
Correct answers: 6
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: 6
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: 6
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: 6
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: 6
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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Nettie Maria Stevens

Born 7 Jul 1861; died 4 May 1912 at age 50.American geneticist who was born in the year that the Civil War began, and despite difficult times and limited women's educational opportunities, became one of the first American women to achieve recognition for her contributions to scientific research. As a cell biologist and geneticist, her great contribution to science was as one of the first scientists to find that sex is determined by a single difference between two classes of sperm - the presence or absence of an X chromosome.
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