BRAIN TEASERS
Daily Brain Teasers

Daily Brain Teasers

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Daily Brain Teasers for Friday, 17 April 2026
● NUMBERMANIA: Calculate the number 687 using numbers [7, 6, 6, 8, 19, 125] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (18, 19, 20, 21, 22, 28, 29, 54, 56, 63, 72) 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 a6c46 - b4aa2 = 8bc54 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 1265 using numbers [7, 1, 5, 6, 55, 947] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 68cc8 + 4ab95 = ba85cc 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 6588 using numbers [4, 4, 8, 8, 46, 504] 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, 6, 8, 9, 17, 19, 20, 62, 64, 65) 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 4a18c - 1a3b3 = c98a9 find number abc. Multiple solutions may exist.
Daily Brain Teasers for Thursday, 16 April 2026
● The aim is to place the some numbers from the list (18, 19, 20, 21, 22, 28, 29, 54, 56, 63, 72) 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 a6c46 - b4aa2 = 8bc54 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 1265 using numbers [7, 1, 5, 6, 55, 947] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 68cc8 + 4ab95 = ba85cc 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 6588 using numbers [4, 4, 8, 8, 46, 504] 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, 6, 8, 9, 17, 19, 20, 62, 64, 65) 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 4a18c - 1a3b3 = c98a9 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, 15 April 2026
● If a6c46 - b4aa2 = 8bc54 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 1265 using numbers [7, 1, 5, 6, 55, 947] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 68cc8 + 4ab95 = ba85cc 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 6588 using numbers [4, 4, 8, 8, 46, 504] 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, 6, 8, 9, 17, 19, 20, 62, 64, 65) 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 4a18c - 1a3b3 = c98a9 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 7328 using numbers [5, 5, 3, 3, 98, 819] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

A visit with Grandpa

A man goes to visit his 85-year-old grandpa in the hospital.

"How are you grandpa?" he asks.

"Feeling fine," says the old man.

"What's the food like?"

"Terrific, wonderful menus."

"And the nursing?"

"Just couldn't be better. These young nurses really take care of you."

"What about sleeping? Do you sleep okay?"

"No problem at all --- nine hours solid every night. At 10 o'clock they bring me a cup of hot chocolate and a Viagra tablet, and that's it. I go out like a light."

The grandson is puzzled and a little alarmed by this, so he rushes off to question the Nurse in charge. "What are you people doing?" he asks. "I'm told you're giving an 85-year-old Viagra on a daily basis. Surely that can't be true?"

"Oh, yes," replies the nurse. "Every night at 10 o'clock we give him a cup of chocolate and a Viagra tablet. It works wonderfully well. The chocolate makes him sleep, and the Viagra stops him from rolling out of bed."

Jokes of the day - Daily updated jokes. New jokes every day.
Daily Brain Teasers for Tuesday, 14 April 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 1265 using numbers [7, 1, 5, 6, 55, 947] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 68cc8 + 4ab95 = ba85cc 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 6588 using numbers [4, 4, 8, 8, 46, 504] 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, 6, 8, 9, 17, 19, 20, 62, 64, 65) 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 4a18c - 1a3b3 = c98a9 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 7328 using numbers [5, 5, 3, 3, 98, 819] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 7b0a8 + 544ab = cb65a0 find number abc. Multiple solutions may exist.
Daily Brain Teasers for Monday, 13 April 2026
● NUMBERMANIA: Calculate the number 1265 using numbers [7, 1, 5, 6, 55, 947] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 68cc8 + 4ab95 = ba85cc 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 6588 using numbers [4, 4, 8, 8, 46, 504] 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, 6, 8, 9, 17, 19, 20, 62, 64, 65) 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 4a18c - 1a3b3 = c98a9 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 7328 using numbers [5, 5, 3, 3, 98, 819] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 7b0a8 + 544ab = cb65a0 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, 12 April 2026
● If 68cc8 + 4ab95 = ba85cc 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 6588 using numbers [4, 4, 8, 8, 46, 504] 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, 6, 8, 9, 17, 19, 20, 62, 64, 65) 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 4a18c - 1a3b3 = c98a9 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 7328 using numbers [5, 5, 3, 3, 98, 819] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 7b0a8 + 544ab = cb65a0 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 1085 using numbers [8, 1, 6, 6, 51, 677] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Daily Brain Teasers for Saturday, 11 April 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 6588 using numbers [4, 4, 8, 8, 46, 504] 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, 6, 8, 9, 17, 19, 20, 62, 64, 65) 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 4a18c - 1a3b3 = c98a9 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 7328 using numbers [5, 5, 3, 3, 98, 819] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 7b0a8 + 544ab = cb65a0 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 1085 using numbers [8, 1, 6, 6, 51, 677] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (11, 13, 16, 18, 20, 22, 27, 57, 59, 64) 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, 10 April 2026
● NUMBERMANIA: Calculate the number 6588 using numbers [4, 4, 8, 8, 46, 504] 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, 6, 8, 9, 17, 19, 20, 62, 64, 65) 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 4a18c - 1a3b3 = c98a9 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 7328 using numbers [5, 5, 3, 3, 98, 819] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 7b0a8 + 544ab = cb65a0 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 1085 using numbers [8, 1, 6, 6, 51, 677] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (11, 13, 16, 18, 20, 22, 27, 57, 59, 64) 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 b6b62 + 7acba = a558b find number abc. Multiple solutions may exist.
Daily Brain Teasers for Thursday, 09 April 2026
● The aim is to place the some numbers from the list (2, 6, 8, 9, 17, 19, 20, 62, 64, 65) 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 4a18c - 1a3b3 = c98a9 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 7328 using numbers [5, 5, 3, 3, 98, 819] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 7b0a8 + 544ab = cb65a0 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 1085 using numbers [8, 1, 6, 6, 51, 677] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (11, 13, 16, 18, 20, 22, 27, 57, 59, 64) 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 b6b62 + 7acba = a558b 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, 08 April 2026
● If 4a18c - 1a3b3 = c98a9 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 7328 using numbers [5, 5, 3, 3, 98, 819] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 7b0a8 + 544ab = cb65a0 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 1085 using numbers [8, 1, 6, 6, 51, 677] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● The aim is to place the some numbers from the list (11, 13, 16, 18, 20, 22, 27, 57, 59, 64) 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 b6b62 + 7acba = a558b 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 2924 using numbers [9, 5, 7, 5, 18, 597] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
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Lars Valerian Ahlfors

Born 18 Apr 1907; died 11 Oct 1996 at age 89.Finnish mathematician who was awarded one of the first two Fields Medals in 1936 for his work with Riemann surfaces. He also won the Wolf Prize in 1981.
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