A LADY IS UNLOCKING THE DOOR TO HER ROUND HOUSE WHEN SHE HEARS A SCREAM SHE GOES IN AND FIND RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

Crunchkins. Did you answer this riddle correctly?
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They were diving, wearing the old-fashioned diving suits that have a tube that goes to the surface. The were exploring a sunken submarine. When the man shut the door, it cut the air tube, and he died. Did you answer this riddle correctly?
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A twenty dollar bill. Did you answer this riddle correctly?
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She fell back into her apartment! Did you answer this riddle correctly?
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A penguin stuck in a revolving door. Did you answer this riddle correctly?
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Ohio 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  

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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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?
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A dreidel. Did you answer this riddle correctly?
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Wreath Did you answer this riddle correctly?
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The best answer from the choices is the owner lost $100. The $100 bill that was stolen was then given back to the owner. What the owner loses is the $70 worth of goods and the $30 in change, which makes for a total of $70 + $30 = $100. The owner has lost $100.

Technically, the owner lost $30 plus the value, V, of the $70 of goods. Since stores typically sell goods at a markup, the value may be less than $70. But in the case of a loss leader, the owner may have lost more than $70. Did you answer this riddle correctly?
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A sieve. Did you answer this riddle correctly?
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A Watermelon Did you answer this riddle correctly?
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A library Did you answer this riddle correctly?
YES  NO