BRAIN TEASERS
The Most Difficult Tasks (page 50)

The Most Difficult Tasks (page 50)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 491 to 500.
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 (7, 8, 11, 20, 21, 24, 49, 59, 66, 67, 70) 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 9c787 + bb2ab = c3a05c find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#brainteasers #math
[link]

Calculate the number 2102

NUMBERMANIA: Calculate the number 2102 using numbers [8, 3, 1, 6, 23, 195] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
CHECK ANSWER
#brainteasers #math #numbermania

Happiness at the bottom of the beer

“You can't find happiness at the bottom of the beer.” Well, no kidding. Who is happy when their beer runs out.
Jokes of the day - Daily updated jokes. New jokes every day.
[link]

Find number abc

If 3c8a6 + c660a = abc0c find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#brainteasers #math
[link]

Calculate the number 8773

NUMBERMANIA: Calculate the number 8773 using numbers [5, 8, 8, 1, 97, 668] 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 (6, 7, 9, 10, 11, 12, 19, 22, 24, 60) 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 ac3a7 - cbb1c = c3a4a find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#brainteasers #math
[link]

Find number abc

If c1a97 - 1a55b = 47847 find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#brainteasers #math
[link]

Calculate the number 734

NUMBERMANIA: Calculate the number 734 using numbers [2, 2, 7, 7, 25, 190] 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, 2, 5, 11, 15, 16, 19, 35, 36, 39, 87) 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 Lawrence Bragg

Died 1 Jul 1971 at age 81 (born 31 Mar 1890). William Lawrence Bragg was an Australian-English physicist and X-ray crystallographer who at the early age of 25, shared the Nobel Prize for Physics in 1915 (with his father, Sir William Bragg). Lawrence Bragg formulated the Bragg law of X-ray diffraction, which is fundamental for the determination of crystal structure: nλ = 2dsinθ which relates the wavelength of x-rays, λ, the angle of incidence on a crystal, θ, and the spacing of crystal planes, d, for x-ray diffraction, where n is an integer (1, 2, 3, etc.). Together, the Braggs worked out the crystal structures of a number of substances. Early in this work, they showed that sodium chloride does not have individual molecules in the solid, but is an array of sodium and chloride ions.
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.