MATH RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

The $9 paid by each guest accounts for the $2 that went to the bellhop. So rather than adding $27 to the $2 kept by the bellhop, the $27 accounts for the bellhops money. The $27 plus the $3 kept by the guests does add up to $30. Did you answer this riddle correctly?
YES  NO  

5 eggs are taken by the first 5 people, then the 6th person takes the egg , while its still in the carton!! Did you answer this riddle correctly?
YES  NO  

Add a line to make the first + a 4 545+5=550 Did you answer this riddle correctly?
YES  NO  

Mirror one of the threes and put it and the other three together to get an eight. Did you answer this riddle correctly?
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Mirror Did you answer this riddle correctly?
YES  NO  

Acute angel Did you answer this riddle correctly?
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An obtuse angel Did you answer this riddle correctly?
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47

Explanation:
At first look, it seems pretty easy but on the contrary, it is pretty tricky a question. So let us simplify it by dividing the triangle into three equal triangles (the triangles so formed if outer side is connected to the center of the circle) and then count the number of triangles in each part by taking two or more parts together.

First, let us take the triangles in one part. There are 4 non-overlapping and 3 overlapping triangles.
4 + 3 = 7
7 * 3 = 21

Next, if we take number of triangles by taking two parts together, there are 8 in total.
8 * 3 = 24

Lastly, the number of triangles if all three parts are taken together, there are a total of 2.

21 + 24 + 2 = 47. Did you answer this riddle correctly?
YES  NO  

The required digit is 0.

If you add up all the digits in any diagonal, you will find the sum to be 25. Did you answer this riddle correctly?
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Horse = 10
Cowboy-Boot = 1
HorseShoe= 2
The Last equation = 21

Detailed Explanation :
Equation1:
3Horse = 30
=> Horse = 10 .....(1)

Equation2:
1Horse + 2HorseShoe + 2HorseShoe = 18
10 + 4HorseShoe =18
HorseShoe = 2 .....(3)

Equation3:
2HorseShoe - 2Cowboy-Boot = 2
4 - 2Cowboy-Boot = 2
=> Cowboy-Boot = 1 ... (2)

Equation4:
Cowboy-Boot+Horse*HorseShoe = 1+10*2
=>21 Did you answer this riddle correctly?
YES  NO  

She counted the pits! Did you answer this riddle correctly?
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A half-dollar, a quarter, four dimes, and four pennies. Did you answer this riddle correctly?
YES  NO  

Here's the solution:

Although $1.00 + $0.10 does equal $1.10, if you take $1.00 $0.10 you get $0.90, but the problem requires that the bat costs $1 more than the ball.

So, the ball must cost $0.05, and the bat must cost $1.05 since $1.05 + $0.05 = $1.10

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Still not convinced? You can use algebra to solve the problem:

First, lets set up the equation:

x + ($1.00 + x) = $1.10

$1.00 + 2x = $1.10

2x = $1.10 $1.00

2x = $0.101

Finally, solve for x:

x = $0.05

Check your work:

x + ($1.00 + x) = $1.10, so

$0.05 + ($1.00 + $0.05) = $1.10 Did you answer this riddle correctly?
YES  NO  

Prices quoted were for house numbers at 12 cents per number. A number'6' cost me 12 cents. Did you answer this riddle correctly?
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Sir Cumference Did you answer this riddle correctly?
YES  NO