# Daily Brain Teasers for Monday, 03 December 2018

puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |

## Calculate the number 258

NUMBERMANIA: Calculate the number 258 using numbers [5, 5, 2, 2, 80, 560] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.The first user who solved this task is

**Djordje Timotijevic**.#brainteasers #math #numbermania

## Find number abc

If c07c9 - bb5aa = 292b6 find number abc. Multiple solutions may exist.The first user who solved this task is

**Djordje Timotijevic**.#brainteasers #math

## 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

## Calculate the number 555

NUMBERMANIA: Calculate the number 555 using numbers [9, 1, 5, 1, 73, 633] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.The first user who solved this task is

**Djordje Timotijevic**.#brainteasers #math #numbermania

## Carl ZeissDied 3 Dec 1888 at age 72 (born 11 Sep 1816).German industrialist who gained a worldwide reputation as a manufacturer of fine optical instruments. After qualifying in medicine, he began the manufacture of optical instruments, which he knew would be in increasing demand as science and medicine advanced. He spent seven years in the workshops of various European instrument-makers before he founded an optical factory at Jena (1846). He quickly establishing a reputation for products of the highest quality. Twenty years later he went into partnership with Ernst Abbe (1840-1905), who was his advisor on theoretical advances in optics. Abbe further enhanced the reputation of the company and became its sole owner upon the death of Zeiss. Abbe enhanced the reputation of the company and established invested in the workers. |

## MAGIC SQUARE: Calculate A-B*C

The aim is to place the some numbers from the list (1, 3, 4, 16, 18, 19, 31, 33, 34, 72, 74, 83, 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.The first user who solved this task is

**Djordje Timotijevic**.#brainteasers #math #magicsquare

## Find number abc

If 91c33 - cab71 = 4a8b2 find number abc. Multiple solutions may exist.The first user who solved this task is

**Djordje Timotijevic**.#brainteasers #math

## 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.The first user who solved this task is

**Djordje Timotijevic**.#brainteasers #mastermind

## Calculate the number 5436

NUMBERMANIA: Calculate the number 5436 using numbers [1, 7, 4, 8, 96, 584] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.The first user who solved this task is

**Djordje Timotijevic**.#brainteasers #math #numbermania

## Find number abc

If 9ac6a - 20ab5 = bc889 find number abc. Multiple solutions may exist.The first user who solved this task is

**Djordje Timotijevic**.#brainteasers #math

## 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

**Djordje Timotijevic**.#brainteasers #mastermind