BRAIN TEASERS
Brain Teasers (page 277)

Brain Teasers (page 277)

puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, sport... These are the tasks listed 2761 to 2770.
Register with your Google Account and start collecting points.
Check your ranking on list.
[link]

Find number abc

If 8acc7 + 39678 = b2ab2a find number abc. Multiple solutions may exist.
Correct answers: 26
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: 30
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
[link]

Calculate the number 1054

NUMBERMANIA: Calculate the number 1054 using numbers [5, 5, 1, 5, 75, 114] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 9
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #numbermania

Confuse Traffic Signs

A cop pulls over a carload of nuns.
Cop: "Sister, this is a 65 MPH highway -- why are you going so slow?"
Sister: "Sir, I saw a lot of signs that said 22, not 65."
Cop: "Oh sister, that's not the speed limit, that's the name of the highway you're on!
Sister: Oh! Silly me! Thanks for letting me know. I'll be more careful.
At this point the cop looks in the backseat where the other nuns are shaking and trembling.
Cop: Excuse me, Sister, what's wrong with your friends back there? They're shaking something terrible.
Sister: Oh, we just got off of highway 119.
Jokes of the day - Daily updated jokes. New jokes every day.
[link]

Find number abc

If 68b10 - c6a78 = 4c1ac find number abc. Multiple solutions may exist.
Correct answers: 27
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
[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: 37
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
[link]

Calculate the number 905

NUMBERMANIA: Calculate the number 905 using numbers [7, 2, 4, 3, 46, 820] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 12
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #numbermania
[link]

MAGIC SQUARE: Calculate A-B*C

The aim is to place the some numbers from the list (7, 8, 14, 24, 25, 31, 57, 58, 64) 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.
Correct answers: 12
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #magicsquare
[link]

Find number abc

If b2b71 - 12b5a = a001c find number abc. Multiple solutions may exist.
Correct answers: 32
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: 40
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
[link]

Calculate the number 886

NUMBERMANIA: Calculate the number 886 using numbers [9, 9, 5, 1, 62, 403] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 9
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #numbermania
PREVIOUS PAGE
NEXT PAGE
Follow Brain Teasers on social networks
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.
Last Correct Answer

Top 10 Users (1174)

1. H Tav
5861
2. c. raj.
5777
3. Nasrin 24 T
5731
4. Fazil Hashim
5718
5. Thinh Ddh
5557
6. Alfa Omega
4681
7. Djordje Timotijevic
4549
8. Mita Kojd
4525
9. Jakubovski Vladimir
4443
10. Chandu Rajyaguru
4419
See full ranking list

Hermann Kolbe

Born 27 Sep 1818; died 25 Nov 1884 at age 66. Adolphe Wilhelm Hermann Kolbe was a German chemist who accomplished the first generally accepted synthesis of an organic compound from inorganic materials. While working on his doctorate he also succeeded in producing acetic acid from inorganic compounds, which according to the doctrines of vitalism was impossible. In 1859, he succeeded using phenol and carbon dioxide to produce salicylic acid, which led to the cheaper production of acetylsalicylic acid, or aspirin. The two reactions came to be called Kolbe's synthesis.
This site uses cookies to store information on your computer. Some are essential to help the site properly. Others give us insight into how the site is used and help us to optimize the user experience. See our privacy policy.