A MAN WENT INTO A PARTY AND DRINK SOME OF THE PUNCHHE THEN RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

Refrigerator Did you answer this riddle correctly?
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She was throwing away all the W's... Did you answer this riddle correctly?
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Milk is good for the bones Did you answer this riddle correctly?
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Diet Croak Did you answer this riddle correctly?
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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?
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Lunch and dinner! Did you answer this riddle correctly?
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He was returning home in the middle of the day, so anyone could have seen him. Did you answer this riddle correctly?
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The poison from the punch came from the ice cubes. When the man drank the punch, the ice was fully frozen. Gradually, as the ice cubes melted the poison was released into the punch. Did you answer this riddle correctly?
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In 15 minutes. After five Did you answer this riddle correctly?
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He lived in a lighthouse as lighthouse keeper. He turned off all the lights by accident, so a ship with 7 passengers couldnt negotiate the rocky shores. One would think the light switches in a lighthouse would be more clearly marked. Did you answer this riddle correctly?
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There was poison in ice cubes. The first man drank it down before the ice had a chance to melt. Did you answer this riddle correctly?
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Map Did you answer this riddle correctly?
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Stars Did you answer this riddle correctly?
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A date Did you answer this riddle correctly?
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A window Did you answer this riddle correctly?
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