BRAIN TEASERS
Daily Brain Teasers

Daily Brain Teasers

puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ...
Daily Brain Teasers for Sunday, 17 May 2026
● If abb7a + ca741 = 1a431c 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 2222 using numbers [1, 2, 4, 9, 70, 532] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (8, 12, 13, 28, 32, 33, 38, 42, 43, 52, 61) 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 4baab + 537bc = 1030a7 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 595 using numbers [2, 1, 8, 7, 66, 516] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 39094 + 5aa93 = 90b8c 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 4333 using numbers [3, 2, 5, 4, 60, 158] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Daily Brain Teasers for Saturday, 16 May 2026
● 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 2222 using numbers [1, 2, 4, 9, 70, 532] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (8, 12, 13, 28, 32, 33, 38, 42, 43, 52, 61) 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 4baab + 537bc = 1030a7 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 595 using numbers [2, 1, 8, 7, 66, 516] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 39094 + 5aa93 = 90b8c 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 4333 using numbers [3, 2, 5, 4, 60, 158] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (1, 10, 12, 13, 15, 16, 19, 62, 64, 68) 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, 15 May 2026
● NUMBERMANIA: Calculate the number 2222 using numbers [1, 2, 4, 9, 70, 532] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (8, 12, 13, 28, 32, 33, 38, 42, 43, 52, 61) 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 4baab + 537bc = 1030a7 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 595 using numbers [2, 1, 8, 7, 66, 516] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 39094 + 5aa93 = 90b8c 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 4333 using numbers [3, 2, 5, 4, 60, 158] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (1, 10, 12, 13, 15, 16, 19, 62, 64, 68) 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 9b003 + 9036b = cab36a find number abc. Multiple solutions may exist.

Remain In Your Seats

My first apartment was so close to the Airport...
That every time I went to the kitchen to make a brew and a sandwich, the stewardess told me to get back to my seat.

Jokes of the day - Daily updated jokes. New jokes every day.
Daily Brain Teasers for Thursday, 14 May 2026
● The aim is to place the some numbers from the list (8, 12, 13, 28, 32, 33, 38, 42, 43, 52, 61) 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 4baab + 537bc = 1030a7 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 595 using numbers [2, 1, 8, 7, 66, 516] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 39094 + 5aa93 = 90b8c 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 4333 using numbers [3, 2, 5, 4, 60, 158] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (1, 10, 12, 13, 15, 16, 19, 62, 64, 68) 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 9b003 + 9036b = cab36a 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, 13 May 2026
● If 4baab + 537bc = 1030a7 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 595 using numbers [2, 1, 8, 7, 66, 516] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 39094 + 5aa93 = 90b8c 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 4333 using numbers [3, 2, 5, 4, 60, 158] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (1, 10, 12, 13, 15, 16, 19, 62, 64, 68) 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 9b003 + 9036b = cab36a 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 994 using numbers [3, 9, 3, 8, 92, 555] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Daily Brain Teasers for Tuesday, 12 May 2026
● 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 595 using numbers [2, 1, 8, 7, 66, 516] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 39094 + 5aa93 = 90b8c 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 4333 using numbers [3, 2, 5, 4, 60, 158] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (1, 10, 12, 13, 15, 16, 19, 62, 64, 68) 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 9b003 + 9036b = cab36a 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 994 using numbers [3, 9, 3, 8, 92, 555] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 5ca4a - bbc8c = 34b53 find number abc. Multiple solutions may exist.
Daily Brain Teasers for Monday, 11 May 2026
● NUMBERMANIA: Calculate the number 595 using numbers [2, 1, 8, 7, 66, 516] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 39094 + 5aa93 = 90b8c 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 4333 using numbers [3, 2, 5, 4, 60, 158] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (1, 10, 12, 13, 15, 16, 19, 62, 64, 68) 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 9b003 + 9036b = cab36a 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 994 using numbers [3, 9, 3, 8, 92, 555] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 5ca4a - bbc8c = 34b53 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, 10 May 2026
● If 39094 + 5aa93 = 90b8c 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 4333 using numbers [3, 2, 5, 4, 60, 158] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (1, 10, 12, 13, 15, 16, 19, 62, 64, 68) 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 9b003 + 9036b = cab36a 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 994 using numbers [3, 9, 3, 8, 92, 555] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 5ca4a - bbc8c = 34b53 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 6943 using numbers [7, 5, 3, 7, 14, 685] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Daily Brain Teasers for Saturday, 09 May 2026
● 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 4333 using numbers [3, 2, 5, 4, 60, 158] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (1, 10, 12, 13, 15, 16, 19, 62, 64, 68) 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 9b003 + 9036b = cab36a 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 994 using numbers [3, 9, 3, 8, 92, 555] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 5ca4a - bbc8c = 34b53 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 6943 using numbers [7, 5, 3, 7, 14, 685] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (7, 8, 15, 16, 23, 24, 31, 65, 66, 73, 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.
Daily Brain Teasers for Friday, 08 May 2026
● NUMBERMANIA: Calculate the number 4333 using numbers [3, 2, 5, 4, 60, 158] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (1, 10, 12, 13, 15, 16, 19, 62, 64, 68) 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 9b003 + 9036b = cab36a 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 994 using numbers [3, 9, 3, 8, 92, 555] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 5ca4a - bbc8c = 34b53 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 6943 using numbers [7, 5, 3, 7, 14, 685] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (7, 8, 15, 16, 23, 24, 31, 65, 66, 73, 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 964ba - 9bc90 = 4a2a find number abc. Multiple solutions may exist.
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Thomas Midgley Jr.

Born 18 May 1889; died 2 Nov 1944 at age 55.American engineer and chemist who discovered the effectiveness of tetraethyl lead (C2H5)4Pb in 1921 as an antiknock additive for gasoline. Knocking jars the wall of the automobile cylinders by the explosion instead of steadily pushing the cylinder back. This wastes a large percentage of the energy and damages the engine. He also developed carbon tetrafluoride (CF4) a cleaning agent and in 1930 dichlorofluoromethane (CCl2F2) later called "Freon". This is a non-toxic and non-flammable gas, unreactive at normal temperatures but able to be easily liquified by pressure alone. It replaced toxic gases previously used in home refrigeration.
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