BRAIN TEASERS
The Most Difficult Tasks (page 25)

The Most Difficult Tasks (page 25)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 241 to 250.
Register with your Google Account and start collecting points.
Check your ranking on list.
[link]

MAGIC SQUARE: Calculate A-B*C

The aim is to place the some numbers from the list (1, 2, 4, 9, 28, 30, 35, 36, 56, 69, 71, 76) 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: 0
CHECK ANSWER
#brainteasers #math #magicsquare
[link]

Calculate the number 1204

NUMBERMANIA: Calculate the number 1204 using numbers [6, 4, 2, 6, 64, 240] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
CHECK ANSWER
#brainteasers #math #numbermania
[link]

Calculate the number 2793

NUMBERMANIA: Calculate the number 2793 using numbers [3, 8, 5, 4, 56, 440] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
CHECK ANSWER
#brainteasers #math #numbermania

Stealing people’s electrons

I was arrested the other day for stealing people’s electrons.

I was heavily charged, despite my victims saying it was an overall positive experience.

Found on: badjokesbyjeff.tumblr.com

Jokes of the day - Daily updated jokes. New jokes every day.
[link]

MAGIC SQUARE: Calculate A*B-C

The aim is to place the some numbers from the list (3, 4, 6, 26, 27, 29, 40, 63, 64, 66, 73) 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: 0
CHECK ANSWER
#brainteasers #math #magicsquare
[link]

Calculate the number 1132

NUMBERMANIA: Calculate the number 1132 using numbers [5, 3, 2, 2, 93, 977] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
CHECK ANSWER
#brainteasers #math #numbermania
[link]

Calculate the number 4237

NUMBERMANIA: Calculate the number 4237 using numbers [5, 6, 2, 8, 46, 778] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
CHECK ANSWER
#brainteasers #math #numbermania
[link]

MAGIC SQUARE: Calculate A-B*C

The aim is to place the some numbers from the list (1, 3, 4, 14, 16, 17, 27, 42, 44, 45, 47) 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: 0
CHECK ANSWER
#brainteasers #math #magicsquare
[link]

MAGIC SQUARE: Calculate A*B+C

The aim is to place the some numbers from the list (7, 8, 17, 19, 26, 27, 36, 50, 65, 66, 75, 91) 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: 0
CHECK ANSWER
#brainteasers #math #magicsquare
[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: 0
CHECK ANSWER
#brainteasers #mastermind
[link]

Calculate the number 7453

NUMBERMANIA: Calculate the number 7453 using numbers [1, 9, 9, 1, 22, 744] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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

Transistor

In 1948, the transistor was demonstrated by its inventors, John Bardeen and Walter Brattain, scientists at the Bell Telephone Laboratory in Murray Hill, NJ. It was a simple, tiny device utilizing the electronic semiconducting properties of a germanium wafer. The transistor represented a significant advance in technology. As it was developed over the next few years, it was incorporated into electronic equipment as a functional replacment for the vacuum tube. Such use of transistors provided great savings in space and electrical power consumption. This made possible the small portable, battery-powered transistor radios which were sold to the public by late 1954.*
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.