BRAIN TEASERS
Daily Brain Teasers

Daily Brain Teasers

puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ...
Daily Brain Teasers for Friday, 12 July 2024
● NUMBERMANIA: Calculate the number 9492 using numbers [6, 3, 8, 4, 85, 971] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (5, 7, 11, 12, 13, 14, 19, 20, 21, 28, 53, 81) 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. ● If 6a277 + 2b0ac = ccbba find number abc. Multiple solutions may exist. ● 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. ● NUMBERMANIA: Calculate the number 600 using numbers [9, 2, 5, 9, 61, 721] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 5ca67 + 5a62b = aa07ca find number abc. Multiple solutions may exist. ● 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. ● NUMBERMANIA: Calculate the number 1022 using numbers [4, 6, 9, 5, 42, 864] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (12, 13, 14, 22, 23, 24, 43, 44, 45, 77) 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. ● If a65ca - a40a6 = b44c find number abc. Multiple solutions may exist.
Daily Brain Teasers for Thursday, 11 July 2024
● The aim is to place the some numbers from the list (5, 7, 11, 12, 13, 14, 19, 20, 21, 28, 53, 81) 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. ● If 6a277 + 2b0ac = ccbba find number abc. Multiple solutions may exist. ● 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. ● NUMBERMANIA: Calculate the number 600 using numbers [9, 2, 5, 9, 61, 721] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 5ca67 + 5a62b = aa07ca find number abc. Multiple solutions may exist. ● 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. ● NUMBERMANIA: Calculate the number 1022 using numbers [4, 6, 9, 5, 42, 864] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (12, 13, 14, 22, 23, 24, 43, 44, 45, 77) 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. ● If a65ca - a40a6 = b44c find number abc. Multiple solutions may exist. ● 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.
Daily Brain Teasers for Wednesday, 10 July 2024
● If 6a277 + 2b0ac = ccbba find number abc. Multiple solutions may exist. ● 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. ● NUMBERMANIA: Calculate the number 600 using numbers [9, 2, 5, 9, 61, 721] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 5ca67 + 5a62b = aa07ca find number abc. Multiple solutions may exist. ● 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. ● NUMBERMANIA: Calculate the number 1022 using numbers [4, 6, 9, 5, 42, 864] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (12, 13, 14, 22, 23, 24, 43, 44, 45, 77) 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. ● If a65ca - a40a6 = b44c find number abc. Multiple solutions may exist. ● 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. ● NUMBERMANIA: Calculate the number 6030 using numbers [3, 3, 8, 4, 76, 787] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Jim Gaffigan: Bottled Water

How did we get to the point where were paying for bottled water? That must have been some weird marketing meeting over in France. Some French guys sitting there, like, How dumb do I think the Americans are? I bet you we could sell those idiots water.
Jokes of the day - Daily updated jokes. New jokes every day.
Daily Brain Teasers for Tuesday, 09 July 2024
● 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. ● NUMBERMANIA: Calculate the number 600 using numbers [9, 2, 5, 9, 61, 721] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 5ca67 + 5a62b = aa07ca find number abc. Multiple solutions may exist. ● 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. ● NUMBERMANIA: Calculate the number 1022 using numbers [4, 6, 9, 5, 42, 864] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (12, 13, 14, 22, 23, 24, 43, 44, 45, 77) 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. ● If a65ca - a40a6 = b44c find number abc. Multiple solutions may exist. ● 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. ● NUMBERMANIA: Calculate the number 6030 using numbers [3, 3, 8, 4, 76, 787] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 919aa - bb0c7 = c9877 find number abc. Multiple solutions may exist.
Daily Brain Teasers for Monday, 08 July 2024
● NUMBERMANIA: Calculate the number 600 using numbers [9, 2, 5, 9, 61, 721] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 5ca67 + 5a62b = aa07ca find number abc. Multiple solutions may exist. ● 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. ● NUMBERMANIA: Calculate the number 1022 using numbers [4, 6, 9, 5, 42, 864] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (12, 13, 14, 22, 23, 24, 43, 44, 45, 77) 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. ● If a65ca - a40a6 = b44c find number abc. Multiple solutions may exist. ● 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. ● NUMBERMANIA: Calculate the number 6030 using numbers [3, 3, 8, 4, 76, 787] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 919aa - bb0c7 = c9877 find number abc. Multiple solutions may exist. ● 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.
Daily Brain Teasers for Sunday, 07 July 2024
● If 5ca67 + 5a62b = aa07ca find number abc. Multiple solutions may exist. ● 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. ● NUMBERMANIA: Calculate the number 1022 using numbers [4, 6, 9, 5, 42, 864] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (12, 13, 14, 22, 23, 24, 43, 44, 45, 77) 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. ● If a65ca - a40a6 = b44c find number abc. Multiple solutions may exist. ● 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. ● NUMBERMANIA: Calculate the number 6030 using numbers [3, 3, 8, 4, 76, 787] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 919aa - bb0c7 = c9877 find number abc. Multiple solutions may exist. ● 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. ● NUMBERMANIA: Calculate the number 8508 using numbers [8, 5, 7, 5, 13, 650] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Daily Brain Teasers for Saturday, 06 July 2024
● 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. ● NUMBERMANIA: Calculate the number 1022 using numbers [4, 6, 9, 5, 42, 864] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (12, 13, 14, 22, 23, 24, 43, 44, 45, 77) 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. ● If a65ca - a40a6 = b44c find number abc. Multiple solutions may exist. ● 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. ● NUMBERMANIA: Calculate the number 6030 using numbers [3, 3, 8, 4, 76, 787] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 919aa - bb0c7 = c9877 find number abc. Multiple solutions may exist. ● 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. ● NUMBERMANIA: Calculate the number 8508 using numbers [8, 5, 7, 5, 13, 650] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (13, 14, 15, 24, 25, 26, 54, 58, 59, 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.
Daily Brain Teasers for Friday, 05 July 2024
● NUMBERMANIA: Calculate the number 1022 using numbers [4, 6, 9, 5, 42, 864] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (12, 13, 14, 22, 23, 24, 43, 44, 45, 77) 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. ● If a65ca - a40a6 = b44c find number abc. Multiple solutions may exist. ● 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. ● NUMBERMANIA: Calculate the number 6030 using numbers [3, 3, 8, 4, 76, 787] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 919aa - bb0c7 = c9877 find number abc. Multiple solutions may exist. ● 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. ● NUMBERMANIA: Calculate the number 8508 using numbers [8, 5, 7, 5, 13, 650] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (13, 14, 15, 24, 25, 26, 54, 58, 59, 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. ● If cbac2 + ba090 = 1a1ca2 find number abc. Multiple solutions may exist.
Daily Brain Teasers for Thursday, 04 July 2024
● The aim is to place the some numbers from the list (12, 13, 14, 22, 23, 24, 43, 44, 45, 77) 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. ● If a65ca - a40a6 = b44c find number abc. Multiple solutions may exist. ● 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. ● NUMBERMANIA: Calculate the number 6030 using numbers [3, 3, 8, 4, 76, 787] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 919aa - bb0c7 = c9877 find number abc. Multiple solutions may exist. ● 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. ● NUMBERMANIA: Calculate the number 8508 using numbers [8, 5, 7, 5, 13, 650] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (13, 14, 15, 24, 25, 26, 54, 58, 59, 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. ● If cbac2 + ba090 = 1a1ca2 find number abc. Multiple solutions may exist. ● 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.
Daily Brain Teasers for Wednesday, 03 July 2024
● If a65ca - a40a6 = b44c find number abc. Multiple solutions may exist. ● 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. ● NUMBERMANIA: Calculate the number 6030 using numbers [3, 3, 8, 4, 76, 787] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 919aa - bb0c7 = c9877 find number abc. Multiple solutions may exist. ● 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. ● NUMBERMANIA: Calculate the number 8508 using numbers [8, 5, 7, 5, 13, 650] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (13, 14, 15, 24, 25, 26, 54, 58, 59, 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. ● If cbac2 + ba090 = 1a1ca2 find number abc. Multiple solutions may exist. ● 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. ● NUMBERMANIA: Calculate the number 873 using numbers [5, 8, 8, 7, 15, 823] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Follow Brain Teasers on social networks

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

Water softener patent

In 1937, a patent was issued to Leroy C. Lind for the Servisoft water softener (U.S. No. 2,087,157). The invention used a regeneratable granulated mineral, such as zeolite, which was already in use by domestic water softening systems using a permanent bed of the material. Leroy Lind devised a method that would be easier and faster to maintain. It would be less costly, and enabled the spent mineral to be regenerated collectively from a number of installations at a central location. The softener was packaged in water pervious, flexible walled cartridges or sacks sized to stack several vertically within a tall cylindrical tank connected to the water supply line. The contents of the sacks would settle to seal against the interior surface of the tank. The tank had a removable top to facilitate switching with renewed sacks.«
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.