BRAIN TEASERS
The Most Difficult Tasks (page 53)

The Most Difficult Tasks (page 53)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 521 to 530.
Register with your Google Account and start collecting points.
Check your ranking on list.
[link]

Calculate the number 4235

NUMBERMANIA: Calculate the number 4235 using numbers [3, 1, 1, 4, 78, 981] 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 (3, 4, 7, 11, 12, 14, 18, 19, 29, 69, 70, 80) 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]

Find number abc

If 101a2 + 6cbcc = 7c7a1 find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#brainteasers #math

Insulate your percussion instrument

How do you insulate your percussion instruments?
With xylofoam.

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

Calculate the number 372

NUMBERMANIA: Calculate the number 372 using numbers [1, 4, 7, 4, 37, 121] 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 760

NUMBERMANIA: Calculate the number 760 using numbers [5, 5, 8, 2, 19, 127] 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 (3, 4, 7, 12, 13, 15, 16, 42, 43, 46) 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 1991

NUMBERMANIA: Calculate the number 1991 using numbers [4, 6, 6, 6, 74, 713] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
CHECK ANSWER
#brainteasers #math #numbermania
[link]

Find number abc

If 6a5c1 + 2751b = 88ab5 find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#brainteasers #math
[link]

Calculate the number 1076

NUMBERMANIA: Calculate the number 1076 using numbers [2, 6, 4, 8, 30, 426] 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 (8, 11, 18, 23, 26, 33, 36, 39, 45, 46, 68, 86) 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
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

Sir Francis Simon

Born 2 Jul 1893; died 31 Oct 1956 at age 63.Sir Franz Eugen Francis Simon was a German-British physicist whose work in low-temperature physics reached a low of 20 millionths of a degree above absolute zero. He avoided life in Hitler's Germany by going to Oxford. Simon worked on lowering temperatures below the point previously possible by the Joule-Thomson effect. His method was to withdraw heat by lining up paramagnetic molecules at very low temperatures and then allow their orientation to randomize, abstracting further heat from the surroundings and lowering the temperature still further. He came closer to absolute zero, though with more difficulty, by doing the same with nuclear spins.Name before emigrating from Germany (due to anti-semiticsm): Franz Eugen Simon*
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.