WHAT 3 LETTERS MAKE A MAN RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

They read the same right side up and upside down. Did you answer this riddle correctly?
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The letter C. (Sea) Did you answer this riddle correctly?
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Because it was his duty! Did you answer this riddle correctly?
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Noel (more literally no l). Did you answer this riddle correctly?
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They are the only three US state abbreviations whose two letters are next to each other in the alphabet.

DE Delaware
HI Hawaii
MN Minnesota Did you answer this riddle correctly?
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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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School Bus Did you answer this riddle correctly?
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He's a smuggler. 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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SAG Did you answer this riddle correctly?
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A palm. Did you answer this riddle correctly?
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Incorrectly. Did you answer this riddle correctly?
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A pair of scissors. Did you answer this riddle correctly?
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3. Half of 2 is 1. Add 2 more to get 3! Did you answer this riddle correctly?
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