Daily Brain Teasers for Wednesday, 13 May 2026
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If 4baab + 537bc = 1030a7 find number abc. Multiple solutions may exist.
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.
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.
You will spend eternity here...
The devil meets him at the gate and says, "Alright, you have died and come to hell. You will spend eternity here, but you get to choose how to spend it. You may choose one of these three doorways. Once you choose a door, you may not change it. So let's get started."
The devil opens Door One. The guy looks in and sees a couple of people standing on their heads on a Concrete floor. The guy says, "No way, let's move on."
The devil opens Door Two. The guy sees a few more people standing on their heads on a Wood floor. The guy says, "No way, let's move on."
The devil opens Door Three. The guy sees a bunch of people standing knee-deep in cow manure drinking coffee. The guy says, "Great, this is the one I will chose." The devil says, "OK, wait right here, I will get you some coffee."
The guy settles in with his coffee thinking that this isn't so bad. What's the big deal?
After about 10 minutes a voice comes over the loud speaker saying, "Coffee break's over. Back on your heads!"
Find number abc
If 39094 + 5aa93 = 90b8c find number abc. Multiple solutions may exist.
Henry William StiegelBorn 13 May 1729; died 10 Jan 1785 at age 55.German-American who emigrated to Philadelphia in 1750, and established iron forges in Lancaster and Berks Counties, Pennsylvania. Profits from the business enabled him in 1762 to buy huge amounts of land, on which he designed and built the town of Manheim in Lancaster County. Two years later he began work on a glass factory, having already made plate glass at one of the iron forges. He imported glassblowers from Venice, England, and Germany to produce glass tableware. Though none of the pieces was signed, his use of color, including high-quality blue, green, and purple, became his signature, and he also produced crystal-clear glassware. |
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.
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.
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.
Find number abc
If 9b003 + 9036b = cab36a find number abc. Multiple solutions may exist.
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.
Calculate the number 994
NUMBERMANIA: Calculate the number 994 using numbers [3, 9, 3, 8, 92, 555] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
