AN EX POLICEMAN LOST HIS HOUSE HIS GIRLFRIEND RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

An exhaust Did you answer this riddle correctly?
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Pool-ups! (Pull ups) Did you answer this riddle correctly?
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Frankenstein Did you answer this riddle correctly?
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Once you go black you siriusly don't go back! Did you answer this riddle correctly?
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A Watermelon Did you answer this riddle correctly?
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She's walking. Did you answer this riddle correctly?
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Because he was an undercover cop Did you answer this riddle correctly?
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Because they know how to serve and protect. Did you answer this riddle correctly?
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A window Did you answer this riddle correctly?
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Haste. Did you answer this riddle correctly?
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1/10

For a group of n friends, there are n! (n factorial) ways to draw the names out of the hat. Since a circle does not have a beginning and end, choose one person as the beginning and end of the circle. There are now (n-1)! ways to distribute the remaining people around the circle. Thus the probability of forming a single circle is

(n-1)! / n!

Since n! = (n-1)! * n (for n > 1), this can be rewritten as

(n-1)! / (n*(n-1)!)

Factoring out the (n-1)! from the numerator and denominator leaves

1/n

as the probability. Did you answer this riddle correctly?
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Memory Did you answer this riddle correctly?
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A map Did you answer this riddle correctly?
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The surgeon is the boys mother. Did you answer this riddle correctly?
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London Did you answer this riddle correctly?
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