Daily Brain Teasers for Sunday, 20 February 2022
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If 8a9a3 - a8389 = cbc3b 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 2206
NUMBERMANIA: Calculate the number 2206 using numbers [7, 2, 9, 8, 20, 128] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania

April Fool's Day - Here are 5 pranks you can play on people
1. Add several odd appointments with alarms set to go off during the day to a co-worker’s Outlook calendar.
2. Hide all of the desktop icons on someone’s computer and replace the monitor’s wallpaper with a screen-shot of their desktop.
3. Put a “Please Use Other Door” sign on the entrance to your office building if it only has one entrance.
4. Put a balloon on the tailpipe of a someone’s car so it will pop when they start their car.
5. Glue the headset of someone’s phone down to the cradle.
2. Hide all of the desktop icons on someone’s computer and replace the monitor’s wallpaper with a screen-shot of their desktop.
3. Put a “Please Use Other Door” sign on the entrance to your office building if it only has one entrance.
4. Put a balloon on the tailpipe of a someone’s car so it will pop when they start their car.
5. Glue the headset of someone’s phone down to the cradle.
MAGIC SQUARE: Calculate A-B-C
The aim is to place the some numbers from the list (4, 9, 11, 12, 17, 21, 22, 23, 24, 27, 29, 67) 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
Glenn in orbitIn 1962, John Glenn piloted the Mercury-Atlas 6 Friendship 7 spacecraft on the first U.S. manned orbital mission. Launched from Kennedy Space Center, Florida, he completed three-orbits around the earth, at a maximum altitude of approx. 162 miles and an orbital velocity of approx. 17,500 mph. He spotted Perth, Australia, when that city's residents greeted him by switching on their house lights in unison. A four-cent U.S. stamp was put on sale the same day, making it the first U.S. stamp issued on the day of the event it commemorated. Glenn returned to space 36 years later, making 134 more orbits as a crew member of the space shuttle Discovery (29 Oct - 7 Nov 1998) for investigations on space flight and the aging process. |
Find number abc
If 99cb5 + a5ca9 = caa32a 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 6339
NUMBERMANIA: Calculate the number 6339 using numbers [9, 7, 3, 7, 27, 919] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If 474ca + 2b8cc = 7422b 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 3954
NUMBERMANIA: Calculate the number 3954 using numbers [9, 8, 5, 6, 80, 971] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania