BRAIN TEASERS
Math (page 163)

Math (page 163)

These are fun math riddles. All of these tricky riddles are based on real math concepts and can be solved with purely math and logic. These are the tasks listed 1621 to 1630.
Register with your Google Account and start collecting points.
Check your ranking on list.
[link]

Find number abc

If c3312 - 12bb4 = b07ba 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]

Can you replace the question mark with a number?

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 35
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #riddles
[link]

Calculate A*B*C*D

Look at the series (3, B, 22, 42, 83, 133, D, 302, 427, C, A, 970, ...), determine the pattern, and find the unknown values (A, B, C and D) and calculate A*B*C*D!
Correct answers: 19
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math

Cake

Scientists have discovered a food that diminishes a woman's sex drive by up to 90%.

It's called wedding cake.

Submitted by Calamjo

Edited by Curtis

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

Calculate the number 927

NUMBERMANIA: Calculate the number 927 using numbers [3, 4, 7, 7, 73, 145] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 9
The first user who solved this task is Nasrin 24 T.
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, 9, 11, 12, 13, 25, 36, 69, 70, 71, 82, 83) 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: 10
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
[link]

Can you replace the question mark with a number?

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 39
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #riddles
[link]

Find number abc

If 4c09c + 114a8 = b8bab find number abc. Multiple solutions may exist.
Correct answers: 18
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
[link]

Calculate the number 2230

NUMBERMANIA: Calculate the number 2230 using numbers [8, 2, 9, 5, 62, 673] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 10
The first user who solved this task is NĂ­lton CorrĂȘa de Sousa.
CHECK ANSWER
#brainteasers #math #numbermania
[link]

Can you replace the question mark with a number?

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 73
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #riddles
[link]

Find number abc

If cbca5 - ab1a4 = b0801 find number abc. Multiple solutions may exist.
Correct answers: 37
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
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

Singer's treadle sewing machine

In 1851, Isaac M. Singer of New York City was granted a patent for the first sewing machine with a rocking treadle. Although a sewing machine had already been patented, Singer's sewing machine was revolutionary, having a double treadle. With patent in hand, Isaac set up shop in Boston, Massachusetts and began to manufacture his invention. Even after huge settlements paid to Elias Howe, another sewing machine patent holder, Singer, through business innovations like installment buying, after-sale servicing and trade-in allowances, had the marketplace all sewn up.
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.