Daily Brain Teasers for Wednesday, 15 April 2026
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If a6c46 - b4aa2 = 8bc54 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 1265
NUMBERMANIA: Calculate the number 1265 using numbers [7, 1, 5, 6, 55, 947] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
When people walk away
When people walk away, let them. Your future is not about people who walk away, it's about people who stay in it for the ride.
Find number abc
If 68cc8 + 4ab95 = ba85cc find number abc. Multiple solutions may exist.
#brainteasers #math
E. Leon ChaffeeBorn 15 Apr 1885; died 8 Mar 1975 at age 89.Emory Leon Chaffee was an American physicist whose invention of the “Chaffee Gap” spark-type method to produce continuous high-frequency electrical oscillations for radio transmission was an outcome of research work for his Ph.D. thesis (1911). The spark gap was between the end faces of metal rods (a copper anode and an alumium cathode), in an atmosphere of moist hydrogen in a sealed chamber. The d.c. source circuit included choke coils. The rods were cooled by external radiating fins. He also specialized in the field of thermionic vacuum tubes andtest measurements, such as an accurate direct determination of the value of e/m, the ratio of electron charge and its mass. Later hebecame interested in the eye, doing experimental work with William T. Bovie on the electrical response of the retina, which Chaffee amplified with a vacuum tube circuit.« |
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 6588
NUMBERMANIA: Calculate the number 6588 using numbers [4, 4, 8, 8, 46, 504] 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 (2, 6, 8, 9, 17, 19, 20, 62, 64, 65) 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 4a18c - 1a3b3 = c98a9 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 7328
NUMBERMANIA: Calculate the number 7328 using numbers [5, 5, 3, 3, 98, 819] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
