BRAIN TEASERS
Daily Brain Teasers

Daily Brain Teasers

puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ...
Daily Brain Teasers for Sunday, 18 November 2018
● If bc46b + 93aa3 = ab0bc8 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. ● Find the title of novel, using the move of a chess knight. First letter is T. Length of words in solution: 6,6,7,3. ● NUMBERMANIA: Calculate the number 399 using numbers [7, 6, 7, 2, 12, 110] 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, 10, 17, 20, 23, 26, 33, 42, 46, 49, 56, 57) 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 6875c + 8bb9a = 1c88c7 find number abc. Multiple solutions may exist. ● Find the title of novel, using the move of a chess knight. First letter is T. Length of words in solution: 3,4,2,8,3,10. ● 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 5262 using numbers [9, 9, 4, 3, 67, 390] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If cb4a4 + bc22a = 110b12 find number abc. Multiple solutions may exist.
Daily Brain Teasers for Saturday, 17 November 2018
● 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. ● Find the title of novel, using the move of a chess knight. First letter is T. Length of words in solution: 6,6,7,3. ● NUMBERMANIA: Calculate the number 399 using numbers [7, 6, 7, 2, 12, 110] 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, 10, 17, 20, 23, 26, 33, 42, 46, 49, 56, 57) 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 6875c + 8bb9a = 1c88c7 find number abc. Multiple solutions may exist. ● Find the title of novel, using the move of a chess knight. First letter is T. Length of words in solution: 3,4,2,8,3,10. ● 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 5262 using numbers [9, 9, 4, 3, 67, 390] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If cb4a4 + bc22a = 110b12 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 Friday, 16 November 2018
● Find the title of novel, using the move of a chess knight. First letter is T. Length of words in solution: 6,6,7,3. ● NUMBERMANIA: Calculate the number 399 using numbers [7, 6, 7, 2, 12, 110] 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, 10, 17, 20, 23, 26, 33, 42, 46, 49, 56, 57) 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 6875c + 8bb9a = 1c88c7 find number abc. Multiple solutions may exist. ● Find the title of novel, using the move of a chess knight. First letter is T. Length of words in solution: 3,4,2,8,3,10. ● 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 5262 using numbers [9, 9, 4, 3, 67, 390] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If cb4a4 + bc22a = 110b12 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. ● Find the title of novel, using the move of a chess knight. First letter is F. Length of words in solution: 12.

Two private detectives were do...

Two private detectives were doing some research on a scandalous divorce case in LA. At the husband's request they staked out the wife's bedroom, and sure enough, she had another man inside. The detectives remarked to one another that they were going at it as if sex was going out of style.
After watching rather furtively for quite a few minutes, one detective finally said, "As long as we’re here on the case, may be we should go in after him?"
To this the other replied, "Great idea! Who first?"
Jokes of the day - Daily updated jokes. New jokes every day.
Daily Brain Teasers for Thursday, 15 November 2018
● The aim is to place the some numbers from the list (7, 10, 17, 20, 23, 26, 33, 42, 46, 49, 56, 57) 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 6875c + 8bb9a = 1c88c7 find number abc. Multiple solutions may exist. ● Find the title of novel, using the move of a chess knight. First letter is T. Length of words in solution: 3,4,2,8,3,10. ● 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 5262 using numbers [9, 9, 4, 3, 67, 390] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If cb4a4 + bc22a = 110b12 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. ● Find the title of novel, using the move of a chess knight. First letter is F. Length of words in solution: 12. ● NUMBERMANIA: Calculate the number 5464 using numbers [9, 6, 9, 4, 40, 295] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● Replace asterisk symbols with a letters (*** ***E*S) and guess the name of musician band. Length of words in solution: 3,6.
Daily Brain Teasers for Wednesday, 14 November 2018
● If 6875c + 8bb9a = 1c88c7 find number abc. Multiple solutions may exist. ● Find the title of novel, using the move of a chess knight. First letter is T. Length of words in solution: 3,4,2,8,3,10. ● 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 5262 using numbers [9, 9, 4, 3, 67, 390] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If cb4a4 + bc22a = 110b12 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. ● Find the title of novel, using the move of a chess knight. First letter is F. Length of words in solution: 12. ● NUMBERMANIA: Calculate the number 5464 using numbers [9, 6, 9, 4, 40, 295] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● Replace asterisk symbols with a letters (*** ***E*S) and guess the name of musician band. Length of words in solution: 3,6. ● The aim is to place the some numbers from the list (4, 5, 6, 9, 10, 11, 14, 16, 17, 20) 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 Tuesday, 13 November 2018
● Find the title of novel, using the move of a chess knight. First letter is T. Length of words in solution: 3,4,2,8,3,10. ● 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 5262 using numbers [9, 9, 4, 3, 67, 390] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If cb4a4 + bc22a = 110b12 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. ● Find the title of novel, using the move of a chess knight. First letter is F. Length of words in solution: 12. ● NUMBERMANIA: Calculate the number 5464 using numbers [9, 6, 9, 4, 40, 295] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● Replace asterisk symbols with a letters (*** ***E*S) and guess the name of musician band. Length of words in solution: 3,6. ● The aim is to place the some numbers from the list (4, 5, 6, 9, 10, 11, 14, 16, 17, 20) 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 ca63a - 62b6b = 3257a find number abc. Multiple solutions may exist.
Daily Brain Teasers for Monday, 12 November 2018
● NUMBERMANIA: Calculate the number 5262 using numbers [9, 9, 4, 3, 67, 390] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If cb4a4 + bc22a = 110b12 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. ● Find the title of novel, using the move of a chess knight. First letter is F. Length of words in solution: 12. ● NUMBERMANIA: Calculate the number 5464 using numbers [9, 6, 9, 4, 40, 295] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● Replace asterisk symbols with a letters (*** ***E*S) and guess the name of musician band. Length of words in solution: 3,6. ● The aim is to place the some numbers from the list (4, 5, 6, 9, 10, 11, 14, 16, 17, 20) 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 ca63a - 62b6b = 3257a find number abc. Multiple solutions may exist. ● Which musician band has an album with a cover as in the picture? ● Find the title of novel, using the move of a chess knight. First letter is T. Length of words in solution: 3,8,2,1,4.
Daily Brain Teasers for Sunday, 11 November 2018
● If cb4a4 + bc22a = 110b12 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. ● Find the title of novel, using the move of a chess knight. First letter is F. Length of words in solution: 12. ● NUMBERMANIA: Calculate the number 5464 using numbers [9, 6, 9, 4, 40, 295] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● Replace asterisk symbols with a letters (*** ***E*S) and guess the name of musician band. Length of words in solution: 3,6. ● The aim is to place the some numbers from the list (4, 5, 6, 9, 10, 11, 14, 16, 17, 20) 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 ca63a - 62b6b = 3257a find number abc. Multiple solutions may exist. ● Which musician band has an album with a cover as in the picture? ● Find the title of novel, using the move of a chess knight. First letter is T. Length of words in solution: 3,8,2,1,4. ● 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 Saturday, 10 November 2018
● 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. ● Find the title of novel, using the move of a chess knight. First letter is F. Length of words in solution: 12. ● NUMBERMANIA: Calculate the number 5464 using numbers [9, 6, 9, 4, 40, 295] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● Replace asterisk symbols with a letters (*** ***E*S) and guess the name of musician band. Length of words in solution: 3,6. ● The aim is to place the some numbers from the list (4, 5, 6, 9, 10, 11, 14, 16, 17, 20) 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 ca63a - 62b6b = 3257a find number abc. Multiple solutions may exist. ● Which musician band has an album with a cover as in the picture? ● Find the title of novel, using the move of a chess knight. First letter is T. Length of words in solution: 3,8,2,1,4. ● 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 1066 using numbers [3, 8, 7, 3, 10, 341] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Daily Brain Teasers for Friday, 09 November 2018
● Find the title of novel, using the move of a chess knight. First letter is F. Length of words in solution: 12. ● NUMBERMANIA: Calculate the number 5464 using numbers [9, 6, 9, 4, 40, 295] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● Replace asterisk symbols with a letters (*** ***E*S) and guess the name of musician band. Length of words in solution: 3,6. ● The aim is to place the some numbers from the list (4, 5, 6, 9, 10, 11, 14, 16, 17, 20) 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 ca63a - 62b6b = 3257a find number abc. Multiple solutions may exist. ● Which musician band has an album with a cover as in the picture? ● Find the title of novel, using the move of a chess knight. First letter is T. Length of words in solution: 3,8,2,1,4. ● 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 1066 using numbers [3, 8, 7, 3, 10, 341] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● If 4a3ca + cab32 = 1b83a1 find number abc. Multiple solutions may exist.
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Hendrik Christoffel Van de Hulst

Born 19 Nov 1918; died 31 Jul 2000 at age 81.Dutch astronomer who predicted theoretically (1944) that in interstellar space the amount of neutral atomic hydrogen, which in its hyperfine transition radiates and absorbs at a wavelength of 21 cm, might be expected to occur at such high column densities as to provide a spectral line sufficiently strong as to be measurable. Shortly after the end of the war several groups set about to test this prediction. The 21-cm line of atomic hydrogen was detected in 1951, first at Harvard University followed within a few weeks by others. The discovery demonstrated that astronomical research, which at that time was limited to conventional light, could be complemented with observations at radio wavelengths, revealing a range of new physical processes.
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