THERE ARE 5 PEOPLE IN A ROOM I CAME AND KILLED 4 HOW MA 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  

The Maid; As she said she was dusting the corners and in a round house, there are no corners... 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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You don't knock on your own hotel door and the man did. Did you answer this riddle correctly?
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The 5th sister is playing chess with Katie as chess needs two players. Did you answer this riddle correctly?
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The third man is in a Wheel Chair. So he rolls out on Wheel Chair, instead of Walking out. Did you answer this riddle correctly?
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The match Did you answer this riddle correctly?
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5

You walked into the room which added 1 + 34 = 35

Then you take away 30 from 35 = 5 Did you answer this riddle correctly?
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She's playing chess with Lorraine. Did you answer this riddle correctly?
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The police officer was a man while the doctor and lawyer were women Did you answer this riddle correctly?
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His father was in front of him when he was born, therefore he was born before him. His mother died while giving birth to him. Finally, he grew up to be a minister and married his sister at her ceremony. Did you answer this riddle correctly?
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A Preacher. Did you answer this riddle correctly?
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A mushroom. Did you answer this riddle correctly?
YES  NO  

A yardstick. Did you answer this riddle correctly?
YES  NO  

A fist. Did you answer this riddle correctly?
YES  NO