Daily Brain Teasers for Friday, 15 May 2026
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Calculate the number 2222
NUMBERMANIA: Calculate the number 2222 using numbers [1, 2, 4, 9, 70, 532] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
MAGIC SQUARE: Calculate A-B+C
The aim is to place the some numbers from the list (8, 12, 13, 28, 32, 33, 38, 42, 43, 52, 61) 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
Find number abc
If 4baab + 537bc = 1030a7 find number abc. Multiple solutions may exist.
#brainteasers #math
Keep the change
An elderly couple visits their grown-up grandson one night. While in the bathroom, Grandpa discovers a bottle of Viagra in his grandson's medicine cupboard.
"I don't think you should take one of those," says the grandson when his grandpa asks him about them: "They're pretty expensive."
"How much?" asks the old timer.
"$20 a pill," replies the grandson.
"I'd still like to try one," says the old man: "Before we go in the morning I'll leave the money under the pillow in the guest room."
The next day the grandson goes into the guest room, and lifts the pillow to find $120. Puzzled, he calls his grandpa. "Grandpa, I told you the pills were $20 each!" he says.
"I know," says the old man: "The extra $100 is from your grandma!"
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
Music printingIn 1501, Ottaviano Petrucci of Venice founded the first modern-style music publishing house, by producing the first book of music made from movable type. |
Calculate the number 595
NUMBERMANIA: Calculate the number 595 using numbers [2, 1, 8, 7, 66, 516] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If 39094 + 5aa93 = 90b8c 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 4333
NUMBERMANIA: Calculate the number 4333 using numbers [3, 2, 5, 4, 60, 158] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
MAGIC SQUARE: Calculate A-B*C
The aim is to place the some numbers from the list (1, 10, 12, 13, 15, 16, 19, 62, 64, 68) 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
Find number abc
If 9b003 + 9036b = cab36a find number abc. Multiple solutions may exist.
#brainteasers #math
