Daily Brain Teasers for Monday, 22 April 2024
puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Calculate the number 372
NUMBERMANIA: Calculate the number 372 using numbers [1, 4, 7, 4, 37, 121] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.#brainteasers #math #numbermania
Find number abc
If 4c787 + 39438 = 8cbba 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 760
NUMBERMANIA: Calculate the number 760 using numbers [5, 5, 8, 2, 19, 127] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.#brainteasers #math #numbermania
Sir Harold JeffreysBorn 22 Apr 1891; died 18 Mar 1989 at age 97. English astronomer, geophysicist and mathematician who had diverse scientific interests. In astronomy he proposed models for the structures of the outer planets, and studied the origin of the solar system. He calculated the surface temperatures of gas at less than -100°C, contradicting then accepted views of red-hot temperatures, but Jeffreys was shown to be correct when direct observations were made. In geophysics he researched the circulation of the atmosphere and earthquakes. Analyzing earthquake waves (1926), he became the first to claim that the core of the Earth is molten fluid. Jeffreys also contributed to the general theory of dynamics, aerodynamics, relativity theory and plant ecology.« |
MAGIC SQUARE: Calculate A-B*C
The aim is to place the some numbers from the list (3, 4, 7, 12, 13, 15, 16, 42, 43, 46) 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 52aca - 212ba = c15cb 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 1991
NUMBERMANIA: Calculate the number 1991 using numbers [4, 6, 6, 6, 74, 713] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.#brainteasers #math #numbermania
Find number abc
If 6a5c1 + 2751b = 88ab5 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