YOU ARE ASLEEP AND THERE IS A SUDDEN KNOCK ON THE DOOR BEHIND THE DOOR ARE YOUR PARENTS WHO CAME TO HAVE BREAKFAST IN YOUR FRIDGE ARE BREAD MILK PASTEURIZED JUICE AND A JAR OF JAM TO WHAT WILL YOU OPEN FI RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

The third equation has a term with a pair of whistles. The last line involves a single whistle.

Furthermore, the man in the second and third lines are wearing a whistle, but the man in the last line is not wearing a whistle. Presumably the value of the whistle should be accounted for to get the correct answer.

The pictures can be translated into the following equations:

shoes + shoes + shoes = 30
shoes + (man + whistle) + (man + whistle) = 20
(man + whistle) + 2(whistles) + 2(whistles) = 13
shoes + (man) x (whistle) = ?

From the first equation we can solve for the shoes value:

shoes + shoes + shoes = 30
3(shoes) = 30
shoes = 10

We can then solve the second equation for the (man + whistle) value:

shoes + (man + whistle) + (man + whistle) = 20
10 + 2(man + whistle) = 20
2(man + whistle) = 10
man + whistle = 5

Then we solve the third equation for the whistle:

(man + whistle) + 2(whistles) + 2(whistles) = 13
5 + 4(whistles) = 13
4(whistles) = 8
whistle = 2

We also need to solve for the value of the man:

man + whistle = 5
man + 2 = 5
man = 3

Now we can evaluate the final expression, remembering the order of operations that multiplication should be evaluated before addition:

shoes + (man) x (whistle) = ?

10 + 3 x 2
= 10 + 3 x 2
= 10 + 6
= 16 Did you answer this riddle correctly?
YES  NO  

He melted Did you answer this riddle correctly?
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Playing Chess with Aire, as Chess is a two person game! Did you answer this riddle correctly?
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They were fed up with the hole business Did you answer this riddle correctly?
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Professor Quirrell Did you answer this riddle correctly?
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Three locks are unlocked Did you answer this riddle correctly?
YES  NO  

His eyes Did you answer this riddle correctly?
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A bookworm Did you answer this riddle correctly?
YES  NO  

Look at her hand. She has five fingers besides the obvious thumb that is not visible. This is not possible and that is what is wrong with the picture Did you answer this riddle correctly?
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They are all married Did you answer this riddle correctly?
YES  NO  

If you said 5000 you're wrong! The answer is 4100, how?

1000 + 40 = 1040
1040 + 1000 + 30 = 2070
2070 + 1000 + 20 = 3090
3090 + 1000 = 4090
4090 + 10 = 4100 Did you answer this riddle correctly?
YES  NO  

Answer: 87

Explanation:

If you look at the upside down you will see that the series is actually

86, 87, 88, 89, 90, 91

So the answer is 87. Did you answer this riddle correctly?
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When blind man "Grandpa" opened his bandages, the train must be passing through the dark tunnel. The man thought he was still blind and hence commit suicide. Did you answer this riddle correctly?
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The neighbour borrowed an extra cow, to make the total number of cows 18. Then the oldest son got 1/2 of 18 is 9 cows, the middle son got 1/3 of 18 is 6 cows, and the youngest son got 1/9 of 18 is 2 cows. Since 9+6+2 = 17, the cows could be divided among the three brothers in such a way that the borrowed cow was left over, and could be returned to its owner. Did you answer this riddle correctly?
YES  NO  

The check mark.

"Check, one, two ,three." Did you answer this riddle correctly?
YES  NO