BRAIN TEASERS

# Daily Brain Teasers for Sunday, 19 December 2021

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

## Find number abc

If 75ccb + cbaca = a0a347 find number abc. Multiple solutions may exist.
#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.
#brainteasers #mastermind

## Calculate the number 1179

NUMBERMANIA: Calculate the number 1179 using numbers [6, 4, 9, 9, 33, 231] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania

Q: Did you hear about the Irishman who was tap dancing?
A: He broke his ankle when he fell into the sink.
Q: What's Irish and sits outside in the summertime?
Q: What are the best ten years of an Irishman's life?
Q: How do you sink an Irish submarine?
A: Knock on the hatch.
Q: How can you identify an Irish pirate?
A: He's the one with patches over both eyes.
Jokes of the day - Daily updated jokes. New jokes every day.

## MAGIC SQUARE: Calculate A-B*C

The aim is to place the some numbers from the list (10, 11, 12, 15, 16, 17, 32, 33, 34, 46, 62) 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.
#brainteasers #math #magicsquare

### Earhart flies autogyro

In 1930, the first autogyro pilot to carry a passenger was Amelia Earhart at Pitcairn Field, Willow Grove, Pa. She flew a PCA-2 Pitcairn Autogyro, making several trips with various passengers until dark. It was only on the previous day, 18 Dec 1930, that she made her first solo flight in the autogyro, also making her the first female to make a solo flight. Two years before, on 19 Dec 1928, the first autogyro flight had been made there. Harold F. Pitcairn had brought the aircraft to America and formed the Pitcairn-Cieva Autogyro Company of America for licensing the manufacture of the autogiro in the U.S.

## Find number abc

If ca3a9 - c3b41 = 1a1b find number abc. Multiple solutions may exist.
#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.
#brainteasers #mastermind

## Calculate the number 496

NUMBERMANIA: Calculate the number 496 using numbers [1, 5, 9, 2, 37, 453] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania

## Find number abc

If 92067 - ccb66 = b8b0a find number abc. Multiple solutions may exist.
#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.
#brainteasers #mastermind

## Calculate the number 1785

NUMBERMANIA: Calculate the number 1785 using numbers [5, 6, 5, 9, 43, 342] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.