A MOTHER WAS KOLLED IN A CIRCULAR HOUSE THE KIDS WERE PKAYING WITH THE DOG THE DAD WAS WATCHING FOOTBALL THE MAID WAS CLEANING THE CORNERS AND THE BUTLER WAS WASHING DISHES WHO KILLED THE MO RID RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

A cold spell. Did you answer this riddle correctly?
YES  NO  

Because he was a man of his sword Did you answer this riddle correctly?
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Fly-Day Did you answer this riddle correctly?
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His life had no porpoise 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?
YES  NO  

The door for your parents. Did you answer this riddle correctly?
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Christmas tree Did you answer this riddle correctly?
YES  NO  

Lemon-aid Did you answer this riddle correctly?
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An Edgy Veggie. Did you answer this riddle correctly?
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1 of your 7 year cycles! You go through 7 cycles every year. The first cycle starts on your birthday, and each of the 7 cycles lasts 52 days. (7x52=364).

You only have to find your personal cycle numbers once, because it's always the same, year after year. Did you answer this riddle correctly?
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The letter 'T'

(T)emporary and Permanen(t) Did you answer this riddle correctly?
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She passed the buck! Did you answer this riddle correctly?
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His eyes Did you answer this riddle correctly?
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Keyhole Did you answer this riddle correctly?
YES  NO  

Snake Did you answer this riddle correctly?
YES  NO