Daily Brain Teasers for Sunday, 29 December 2019
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If 7bbca - cbc2a = 4a51a find number abc. Multiple solutions may exist. What a winning combination?
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. Calculate the number 6890
NUMBERMANIA: Calculate the number 6890 using numbers [7, 6, 7, 6, 76, 455] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
Knowing Your Spouse
One of the funniest memories I have of the trials and tribulations of making the journey from childhood to adulthood was our annual summer vacation trek from Chicago to a cabin usually someplace on a lake in Wisconsin or Michigan.
Every year, it seems, we would get on a highway a few miles out of the city, and mom would wail, “Oh my goodness! I think left the iron on.” And almost every year we would turn around and go back. But as I recall, not once was it was ever plugged in. She often had the same fear that all our earthly possessions would disappear in a fire caused by her forgetfulness.
When I was about 14 years old, we were headed out of Chicago for Lake Geneva, Wisconsin and, sure enough, Mom gasped, “I just know I left the iron on.”
My father didn't say a word, just pulled over onto the shoulder of the road, got out, opened the trunk and handed her the iron.
MAGIC SQUARE: Calculate A+B-C
The aim is to place the some numbers from the list (1, 4, 6, 24, 27, 29, 31, 33, 34, 36, 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. Julius AxelrodDied 29 Dec 2004 at age 92 (born 30 May 1912).American biochemist and pharmacologist who (with British biophysicist Sir Bernard Katz and Swedish physiologist Ulf von Euler) received the 1970 Nobel Prize for Physiology or Medicine. Axelrod investigated the mechanism of formation of the hormone noradrenaline, as an important nerve impulse transmitter, specifically his discovery and isolation of the enzyme he called catechol-o-methyl transferase, which degrades chemical neurotransmitters when no longer needed. In effect this resets the nerve to nerve connections ready to transmit the next impulse that arrives. This helped the search for treatment of nervous and mental illnesses. He studied certain psychotropic drugs on the nervous system and the specific route taken by injected drugs. |
Find number abc
If baa40 + 95bcb = bbc86b find number abc. Multiple solutions may exist. What a winning combination?
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. Calculate the number 4972
NUMBERMANIA: Calculate the number 4972 using numbers [7, 8, 2, 2, 79, 696] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
If 8a2c0 - 4aabc = c94aa find number abc. Multiple solutions may exist. Which is a winning combination of digits?
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. Calculate the number 8661
NUMBERMANIA: Calculate the number 8661 using numbers [2, 5, 8, 8, 22, 849] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.