BRAIN TEASERS
Daily Brain Teasers

Daily Brain Teasers

puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ...
Daily Brain Teasers for Thursday, 23 February 2017
● I'm gentle enough to soothe your skin, light enough to fly in the sky and strong enough to crack rocks. What am I? ● Look carefully the picture and guess the game name. ● I am both a killer and a savior, it depends on those who wield me. I will bring you from deep water to the shallows, or maybe I could be the one who will hang you in the gallows. What am I? ● MATH PUZZLE: Can you replace the question mark with a number? ● Look carefully caricature and guess the name of musician. ● Remove 7 letters from this sequence (DIESTRUCSKTALIONOO) to reveal a familiar English word. ● The aim is to place the some numbers from the list (16, 17, 23, 29, 31, 32, 38, 40, 41, 46, 47, 94) 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. ● Can you decrypt hidden message (ZWTS WG HVS ACGH RWTTWQIZH SLOA)? ● I can swing but have no rope. What am I? ● MATH PUZZLE: Can you replace the question mark with a number?
Daily Brain Teasers for Wednesday, 22 February 2017
● Can you decrypt hidden message (ZWTS WG HVS ACGH RWTTWQIZH SLOA)? ● I can swing but have no rope. What am I? ● MATH PUZZLE: Can you replace the question mark with a number? ● Can you name the athletes by the picture? ● See negative of movie scene and guess the title. Length of words in solution: 6,3,5 ● Find the first and the last name of a famous person. Text may go in all 8 directions. Length of words in solution: 4,7. ● If 2a7bb + a97ca = 8a4ca find number abc. Multiple solutions may exist. ● What represents the following text 3AIAWM? ● I am born in fear, raised in truth, and I come to my own in deed. When comes a time that I'm called forth, I come to serve the cause of need. What am I? ● Look carefully the picture and guess the game name.
Daily Brain Teasers for Tuesday, 21 February 2017
● What represents the following text 3AIAWM? ● I am born in fear, raised in truth, and I come to my own in deed. When comes a time that I'm called forth, I come to serve the cause of need. What am I? ● Look carefully the picture and guess the game name. ● Replace asterisk symbols with a letters (***C**O *****N*) and guess the name of musician. Length of words in solution: 7,7. ● Stereogram - 3D Image ● Find the country and its capital city, using the move of a chess knight. First letter is S. Length of words in solution: 5,5,3,5,10. ● 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. ● I'm as small as an ant, as big as a whale. I'll approach like a breeze, but can come like a gale. By some I get hit, but all have shown fear. I'll dance to the music, though I can't hear. Of names I have many, of names I have one. I'm as slow as a snail, but from me you can't run. What am I? ● Can you name the athletes by the picture? ● MATH PUZZLE: Can you replace the question mark with a number?

Mike Birbiglia: Illiterate People

I shouldnt say bad stuff about illiterate people, though. I should write it.
Jokes of the day - Daily updated jokes. New jokes every day.
Daily Brain Teasers for Monday, 20 February 2017
● I'm as small as an ant, as big as a whale. I'll approach like a breeze, but can come like a gale. By some I get hit, but all have shown fear. I'll dance to the music, though I can't hear. Of names I have many, of names I have one. I'm as slow as a snail, but from me you can't run. What am I? ● Can you name the athletes by the picture? ● MATH PUZZLE: Can you replace the question mark with a number? ● See negative of movie scene and guess the title. Length of words in solution: 9 ● Remove 7 letters from this sequence (PROUWSECBUTXOARVSU) to reveal a familiar English word. ● NUMBERMANIA: Calculate the number 566 using numbers [5, 8, 3, 9, 11, 539] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● Remove 3 letters from this sequence (AFFEJICOT) to reveal a familiar English word. ● If 3cbaa + a397a = 49c82 find number abc. Multiple solutions may exist. ● Which musician band has an album with a cover as in the picture? ● Find the first and the last name of a famous person. Text may go in all 8 directions. Length of words in solution: 6,7.
Daily Brain Teasers for Sunday, 19 February 2017
● Remove 3 letters from this sequence (AFFEJICOT) to reveal a familiar English word. ● If 3cbaa + a397a = 49c82 find number abc. Multiple solutions may exist. ● Which musician band has an album with a cover as in the picture? ● Find the first and the last name of a famous person. Text may go in all 8 directions. Length of words in solution: 6,7. ● 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. ● See negative of movie scene and guess the title. Length of words in solution: 3,4,6 ● Stereogram - 3D Image ● Find the country and its capital city, using the move of a chess knight. First letter is M. Length of words in solution: 10,12. ● NUMBERMANIA: Calculate the number 297 using numbers [3, 9, 7, 9, 15, 263] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● Look carefully caricature and guess the name of musician.
Daily Brain Teasers for Saturday, 18 February 2017
● Which musician band has an album with a cover as in the picture? ● Find the first and the last name of a famous person. Text may go in all 8 directions. Length of words in solution: 6,7. ● 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. ● See negative of movie scene and guess the title. Length of words in solution: 3,4,6 ● Stereogram - 3D Image ● Find the country and its capital city, using the move of a chess knight. First letter is M. Length of words in solution: 10,12. ● NUMBERMANIA: Calculate the number 297 using numbers [3, 9, 7, 9, 15, 263] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● Look carefully caricature and guess the name of musician. ● Remove 4 letters from this sequence (RBBTEFOJRE) to reveal a familiar English word. ● The aim is to place the some numbers from the list (18, 20, 25, 26, 27, 28, 30, 33, 36) 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, 17 February 2017
● See negative of movie scene and guess the title. Length of words in solution: 3,4,6 ● Stereogram - 3D Image ● Find the country and its capital city, using the move of a chess knight. First letter is M. Length of words in solution: 10,12. ● NUMBERMANIA: Calculate the number 297 using numbers [3, 9, 7, 9, 15, 263] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● Look carefully caricature and guess the name of musician. ● Remove 4 letters from this sequence (RBBTEFOJRE) to reveal a familiar English word. ● The aim is to place the some numbers from the list (18, 20, 25, 26, 27, 28, 30, 33, 36) 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. ● MATH PUZZLE: Can you replace the question mark with a number? ● Look carefully the picture and guess the game name. ● Take a look at the picture of the movie scene and guess the name of the person whose face is not visible. Length of words in solution: 8,8
Daily Brain Teasers for Thursday, 16 February 2017
● Look carefully caricature and guess the name of musician. ● Remove 4 letters from this sequence (RBBTEFOJRE) to reveal a familiar English word. ● The aim is to place the some numbers from the list (18, 20, 25, 26, 27, 28, 30, 33, 36) 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. ● MATH PUZZLE: Can you replace the question mark with a number? ● Look carefully the picture and guess the game name. ● Take a look at the picture of the movie scene and guess the name of the person whose face is not visible. Length of words in solution: 8,8 ● Find the first and the last name of a famous person. Text may go in all 8 directions. Length of words in solution: 5,5. ● If 626b0 + 8bab6 = bccb26 find number abc. Multiple solutions may exist. ● Look carefully caricature and guess the name of musician. ● Stereogram - 3D Image
Daily Brain Teasers for Wednesday, 15 February 2017
● MATH PUZZLE: Can you replace the question mark with a number? ● Look carefully the picture and guess the game name. ● Take a look at the picture of the movie scene and guess the name of the person whose face is not visible. Length of words in solution: 8,8 ● Find the first and the last name of a famous person. Text may go in all 8 directions. Length of words in solution: 5,5. ● If 626b0 + 8bab6 = bccb26 find number abc. Multiple solutions may exist. ● Look carefully caricature and guess the name of musician. ● Stereogram - 3D Image ● Find the country and its capital city, using the move of a chess knight. First letter is T. Length of words in solution: 4,4. ● 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. ● See negative of movie scene and guess the title. Length of words in solution: 4,5
Daily Brain Teasers for Tuesday, 14 February 2017
● Look carefully caricature and guess the name of musician. ● Stereogram - 3D Image ● Find the country and its capital city, using the move of a chess knight. First letter is T. Length of words in solution: 4,4. ● 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. ● See negative of movie scene and guess the title. Length of words in solution: 4,5 ● Remove 5 letters from this sequence (XEOXVPERIENLCFE) to reveal a familiar English word. ● NUMBERMANIA: Calculate the number 1010 using numbers [1, 3, 1, 5, 94, 726] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. ● Remove 4 letters from this sequence (SERBICAESI) to reveal a familiar English word. ● If 91cba + a6403 = 11b9bc find number abc. Multiple solutions may exist. ● Replace asterisk symbols with a letters (RA* **A****) and guess the name of musician. Length of words in solution: 3,7.
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Jean-Gaston Darboux

Died 23 Feb 1917 at age 74 (born 14 Aug 1842).French mathematician whose work on partial differential equations introduced a new method of integration (the Darboux integral) and contributed to infinitesimal geometry. He wrote a paper in 1870 on differential equations of the second order in which he presented the Darboux integral. In 1873, Darboux wrote a paper on cyclides and between 1887-96 he produced four volumes on infinitesimal geometry, including a discussion of one surface rolling on another surface. In particular he studied the geometrical configuration generated by points and lines which are fixed on the rolling surface. He also studied the problem of finding the shortest path between two points on a surface.«
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