Daily Brain Teasers for Monday, 14 January 2019
puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Calculate the number 1306
NUMBERMANIA: Calculate the number 1306 using numbers [1, 8, 2, 5, 30, 388] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.The first user who solved this task is Thinh Ddh.
#brainteasers #math #numbermania
Find number abc
If 6acab - ac10b = b84a0 find number abc. Multiple solutions may exist.The first user who solved this task is Nílton Corrêa De Sousa.
#brainteasers #math
Finding Inner Beauty
Preparing for a yard sale at our house, my wife and I decided to put out a mirror we'd received as a wedding gift.
Because of its garish aqua colored metal frame we just couldn't find a room in our house where it looked good.
Shortly after the sale started, a man looking to decorate his apartment bought it for one dollar. 'This is a great deal,' he said excitedly. 'It still has the plastic on it.'
Then he peeled off the aqua colored protective covering to reveal a beautiful gold finished frame.
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.The first user who solved this task is Nílton Corrêa De Sousa.
#brainteasers #mastermind
Benjamin Silliman Jr.Died 14 Jan 1885 at age 68 (born 4 Dec 1816).American chemist whose report on the potential uses of crude-oil products gave impetus to plans for drilling the first producing oil well, near Titusville, Pa. Silliman separated the crude oil into its component parts, or its fractions, and observed the characteristics of each fraction. He determined by use of a photometer that distilled petroleum burned much brighter than all but the most expensive and least efficient fuels. He also noted its potential use as a lubricant; he found it capable of withstanding extremely high and low temperatures and able to keep its form after long use. Silliman concluded petroleum was “a raw material from which...they may manufacture a very valuable product.”His report marked petroleum as the answer to the illumination fuel crisis. |
What is the missing number?
What is the missing number?The first user who solved this task is Chandu Rajyaguru.
#brainteasers #math #riddles
Calculate the number 5543
NUMBERMANIA: Calculate the number 5543 using numbers [5, 1, 2, 5, 52, 873] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.The first user who solved this task is Eugenio G. F. de Kereki.
#brainteasers #math #numbermania
MAGIC SQUARE: Calculate A*B*C
The aim is to place the some numbers from the list (1, 2, 4, 15, 16, 18, 28, 29, 31, 67, 72, 91) 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.The first user who solved this task is Nílton Corrêa De Sousa.
#brainteasers #math #magicsquare
Find number abc
If 87c19 - 40ba0 = 4bbb9 find number abc. Multiple solutions may exist.The first user who solved this task is Fazil Hashim.
#brainteasers #math
Find the right 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.The first user who solved this task is Nílton Corrêa De Sousa.
#brainteasers #mastermind
Calculate the number 3172
NUMBERMANIA: Calculate the number 3172 using numbers [4, 6, 9, 4, 60, 226] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.The first user who solved this task is Thinh Ddh.
#brainteasers #math #numbermania