BRAIN TEASERS
Math (page 2)

Math (page 2)

These are fun math riddles. All of these tricky riddles are based on real math concepts and can be solved with purely math and logic. These are the tasks listed 11 to 20.
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MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 23
The first user who solved this task is Djordje Timotijevic.
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What is the 4 digit number i...

What is the 4 digit number in which the first digit is one-fifth of the last, and the second and third digits are the last digit multiplied by 3?
Correct answers: 37
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #riddles
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Find number abc

If 86b7a - 25a26 = 6a2c5 find number abc. Multiple solutions may exist.
Correct answers: 27
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math

Beethoven's Ninth

The symphony orchestra was performing Beethoven's Ninth.

In the piece, there's a long passage, about 20 minutes, during which the bass violinists have nothing to do.

Rather than sit around that whole time looking stupid, some bassists decided to sneak offstage and go to the tavern next door for a quick one.

After slamming several beers in quick succession, one of them looked at his watch and said, "Hey! We need to get back!"

"No need to panic," said a fellow bassist. "I thought we might need some extra time, so I tied the last few pages of the conductor's score together with string. It'll take him a few minutes to get it untangled."

A few moments later they staggered back to the concert hall and took their places in the orchestra.

About this time, a member of the audience noticed the conductor seemed a bit edgy and said as much to her companion.

"Well, of course," said her companion. "Don't you see? It's the bottom of the Ninth, the score is tied, and the bassists are loaded."

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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 74
The first user who solved this task is H Tav.
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#brainteasers #math #riddles
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MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 25
The first user who solved this task is Thinh Ddh.
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#brainteasers #math #riddles
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Calculate the number 3097

NUMBERMANIA: Calculate the number 3097 using numbers [3, 1, 3, 8, 60, 655] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 11
The first user who solved this task is Thinh Ddh.
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#brainteasers #math #numbermania
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 19
The first user who solved this task is Thinh Ddh.
CHECK ANSWER
#brainteasers #math #riddles
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Find number abc

If 5b9b8 - 3c688 = c5c9a find number abc. Multiple solutions may exist.
Correct answers: 16
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math
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Calculate the number 997

NUMBERMANIA: Calculate the number 997 using numbers [2, 9, 3, 2, 87, 478] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 8
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #numbermania
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Find the next number in the ...

Find the next number in the sequence 517, 1251343, 181251276427, ...
Correct answers: 12
The first user who solved this task is H Tav.
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#brainteasers #math
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NUMBERMANIA: Calculate the number 5084 using numbers [3, 8, 3, 9, 38, 644] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
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Typesetting machine patent

In 1841, the first U.S. patent for a typesetting machine was issued to Frenchman Adrien Delcambre and Englishman James Hadden Young, both residing in Lisle, France (No.2,139). Their "Pianotyp" placed letters side by side in their proper places "by means of ... inclined planes upon which the types are thrown and allowed to descend by various channels meeting at one point to what we call the composing box." The machine was operated using "a number of keys similar to those of a pianoforte which act as levers which push the types [which fall] by their own gravity to the said box whenever the keys are depressed." It was patented in England* on 13 Mar 1840, and used in London (1841) to set The Phalanx weekly magazine*.«
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