BRAIN TEASERS
Daily Brain Teasers

Daily Brain Teasers

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Daily Brain Teasers for Monday, 11 November 2019
● NUMBERMANIA: Calculate the number 9712 using numbers [3, 7, 4, 6, 16, 962] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 80c92 - aa21b = 2a479 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 6648 using numbers [6, 7, 9, 1, 10, 443] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (3, 5, 7, 10, 12, 13, 18, 36, 69, 71, 77, 78) 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 c7a57 + ac7b2 = 812ab 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 1937 using numbers [1, 2, 6, 3, 73, 639] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If c780b - a2cb0 = bbabb 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 November 2019
● If 80c92 - aa21b = 2a479 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 6648 using numbers [6, 7, 9, 1, 10, 443] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (3, 5, 7, 10, 12, 13, 18, 36, 69, 71, 77, 78) 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 c7a57 + ac7b2 = 812ab 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 1937 using numbers [1, 2, 6, 3, 73, 639] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If c780b - a2cb0 = bbabb 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 2234 using numbers [6, 2, 8, 7, 14, 696] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Daily Brain Teasers for Saturday, 09 November 2019
● 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 6648 using numbers [6, 7, 9, 1, 10, 443] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (3, 5, 7, 10, 12, 13, 18, 36, 69, 71, 77, 78) 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 c7a57 + ac7b2 = 812ab 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 1937 using numbers [1, 2, 6, 3, 73, 639] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If c780b - a2cb0 = bbabb 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 2234 using numbers [6, 2, 8, 7, 14, 696] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (2, 3, 5, 6, 8, 11, 14, 15, 17, 20, 25, 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.

Two guys are driving down 5th...

Two guys are driving down 5th Avenue in Manhattan when they come up to a red light. The guy driving slams the gas pedal and they go zooming past the red light. His friend looks at him and says, "Hey, you just went through a red light." The guy driving says, "Don't worry about it. My brother does it all the time." So they keep driving and they come to a second red light. The guy driving slams on the gas pedal and zooms past another red light. His friend is pretty mad, looks at him and says, "Hey man, you just went through another red light. What the heck are you doing?" The guy driving tells his friend, "Don't worry about it. My brother does this all the time." They come to a third red light and the guy driving slams on the gas, zooming past the red light. His friend starts screaming at him, "What the heck? You're going to get us killed! Pull over and let me out." The guy driving screams back at him, "I'm telling you: don't worry about it. My brother, he does it all the time." So they keep driving and they come to a green light. The guy driving slams on the brakes. His friend looks at him and says, "Are you out of your mind? What the heck is wrong with you? You go flying past three red lights, almost getting us killed, and then you slam on the brakes when you have a green light?" The guy driving looks at his friend and says, "I had to stop; my brother might have been coming."
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Daily Brain Teasers for Friday, 08 November 2019
● NUMBERMANIA: Calculate the number 6648 using numbers [6, 7, 9, 1, 10, 443] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (3, 5, 7, 10, 12, 13, 18, 36, 69, 71, 77, 78) 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 c7a57 + ac7b2 = 812ab 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 1937 using numbers [1, 2, 6, 3, 73, 639] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If c780b - a2cb0 = bbabb 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 2234 using numbers [6, 2, 8, 7, 14, 696] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (2, 3, 5, 6, 8, 11, 14, 15, 17, 20, 25, 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. ● If 6abc3 + a93c9 = caab2 find number abc. Multiple solutions may exist.
Daily Brain Teasers for Thursday, 07 November 2019
● The aim is to place the some numbers from the list (3, 5, 7, 10, 12, 13, 18, 36, 69, 71, 77, 78) 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 c7a57 + ac7b2 = 812ab 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 1937 using numbers [1, 2, 6, 3, 73, 639] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If c780b - a2cb0 = bbabb 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 2234 using numbers [6, 2, 8, 7, 14, 696] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (2, 3, 5, 6, 8, 11, 14, 15, 17, 20, 25, 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. ● If 6abc3 + a93c9 = caab2 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, 06 November 2019
● If c7a57 + ac7b2 = 812ab 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 1937 using numbers [1, 2, 6, 3, 73, 639] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If c780b - a2cb0 = bbabb 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 2234 using numbers [6, 2, 8, 7, 14, 696] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (2, 3, 5, 6, 8, 11, 14, 15, 17, 20, 25, 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. ● If 6abc3 + a93c9 = caab2 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 714 using numbers [1, 1, 6, 2, 24, 660] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Daily Brain Teasers for Tuesday, 05 November 2019
● 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 1937 using numbers [1, 2, 6, 3, 73, 639] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If c780b - a2cb0 = bbabb 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 2234 using numbers [6, 2, 8, 7, 14, 696] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (2, 3, 5, 6, 8, 11, 14, 15, 17, 20, 25, 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. ● If 6abc3 + a93c9 = caab2 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 714 using numbers [1, 1, 6, 2, 24, 660] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If aab9a - 2b40c = 393cc find number abc. Multiple solutions may exist.
Daily Brain Teasers for Monday, 04 November 2019
● NUMBERMANIA: Calculate the number 1937 using numbers [1, 2, 6, 3, 73, 639] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If c780b - a2cb0 = bbabb 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 2234 using numbers [6, 2, 8, 7, 14, 696] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (2, 3, 5, 6, 8, 11, 14, 15, 17, 20, 25, 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. ● If 6abc3 + a93c9 = caab2 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 714 using numbers [1, 1, 6, 2, 24, 660] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If aab9a - 2b40c = 393cc 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, 03 November 2019
● If c780b - a2cb0 = bbabb 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 2234 using numbers [6, 2, 8, 7, 14, 696] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (2, 3, 5, 6, 8, 11, 14, 15, 17, 20, 25, 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. ● If 6abc3 + a93c9 = caab2 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 714 using numbers [1, 1, 6, 2, 24, 660] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If aab9a - 2b40c = 393cc 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 5020 using numbers [6, 8, 6, 6, 49, 338] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Daily Brain Teasers for Saturday, 02 November 2019
● 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 2234 using numbers [6, 2, 8, 7, 14, 696] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (2, 3, 5, 6, 8, 11, 14, 15, 17, 20, 25, 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. ● If 6abc3 + a93c9 = caab2 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 714 using numbers [1, 1, 6, 2, 24, 660] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If aab9a - 2b40c = 393cc 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 5020 using numbers [6, 8, 6, 6, 49, 338] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (4, 8, 9, 10, 11, 12, 13, 59, 60, 61, 80) 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.
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Salmon return to Thames

In 1974, a salmon was discovered in the River Thames, England, for the first time since 1833. The 8-lb 4½-ozoz female was discovered entangled in the protective nets around West Thurrock power station.* The find was so surprising that the fish was sent to the British Museum for positive identification. Victorian era sewage and factory waste had polluted the once thriving salmon river, and by 1849 the fish had disappeared. On 7 Jul 1855, Michael Faraday wrote inThe Times regarding the putrid state of the Thames. From 1961, improved sewage treatment and limits on industrial discharges gradually brought about a cleaner river. Since the salmon's life cycle requires a high standard of water quality, the species indicates environmental quality.«
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