BRAIN TEASERS

Daily Brain Teasers for Friday, 05 March 2021

Daily Brain Teasers for Friday, 05 March 2021 puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ...

Calculate the number 1459

NUMBERMANIA: Calculate the number 1459 using numbers [8, 5, 3, 1, 93, 318] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #numbermania

MAGIC SQUARE: Calculate A-B+C

The aim is to place the some numbers from the list (5, 6, 13, 22, 23, 24, 25, 30, 32, 50, 99) 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.
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #magicsquare

Find number abc

If c08a3 + 43c9a = b40cb find number abc. Multiple solutions may exist.
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math

A mathematician, a physicist...

A mathematician, a physicist, and an engineer are all given identical rubber balls and told to find the volume. They are given any tools they want, and have all the time they need.
The mathematician uses a measuring tape to record the circumference. He then divides by two times pi to get the radius, cubes that, multiplies by pi again, and then multiplies by four-thirds and thereby calculates the volume.
The physicist gets a bucket of water, places 1.000000 gallons of water in the bucket, drops in the ball and measures the displacement to six significant figures.
The engineer writes down the serial number of the ball and looks it up online.
Jokes of the day - Daily updated jokes. New jokes every day.

Which is a winning combination of digits?

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.
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind

Julian Lowell Coolidge

Died 5 Mar 1954 at age 80 (born 28 Sep 1873). American mathematician and educator noted for numerous published works in theoretical mathematics. He earned a B.A. degree at Harvard (1895), then a B.Sc. (1897) from Oxford, England, the first natural science degree ever awarded at Oxford. He began teaching at Groton School, Conn. (1897-99) where one of his pupils was Franklin D Roosevelt, the future U.S. president. Coolidge was an instructor at Harvard University, taking leave to study abroad (1902-04) with Corrado Segre at Turin and Eduard Studyat the University of Bonn ( Ph.D. 1904). When he returned to Harvard, he remained there for the rest of his career. Later in life, he took an interest in his subject's history, writing Mathematics of the Great Amateurs (1949).«

Calculate the number 992

NUMBERMANIA: Calculate the number 992 using numbers [5, 8, 5, 9, 82, 608] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #numbermania

Find number abc

If c8850 + 9488b = bca7ab find number abc. Multiple solutions may exist.
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math

Which is a winning combination of digits?

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.
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind

Calculate the number 4436

NUMBERMANIA: Calculate the number 4436 using numbers [1, 9, 8, 2, 79, 502] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #numbermania

MAGIC SQUARE: Calculate A*B-C

The aim is to place the some numbers from the list (4, 5, 12, 14, 21, 22, 29, 68, 69, 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.
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare

Find number abc

If b9a8c - cb43a = 5ab5a find number abc. Multiple solutions may exist.
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
Follow Brain Teasers on social networks

Top 20 Users (1112)

1. H Tav
5620
2. Thinh Ddh
5557
3. c. raj.
5488
4. Fazil Hashim
5469
5. Nasrin 24 T
5184
6. Alfa Omega
4677
7. Djordje Timotijevic
4549
8. Mita Kojd
4525
9. Jakubovski Vladimir
4443
10. Chandu Rajyaguru
4419
11. Vladimir Krnac
3952
12. Manguexa Wagle
3755
13. Rutu Raj
3334
14. Nílton Corrêa De Sousa
3213
15. Eugenio G. F. de Kereki
3162
16. Sanja Šabović
3068
17. Roxana zavari
2489
18. Jasmina Atarac
2417
19. Snezana Milanovic
2406
20. Linda Tate Young
2235
See full ranking list
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.