I WENT TO SCHOOL WITH NO PENS AND CAME BACK WITH N RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

Billy Did you answer this riddle correctly?
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The question itself says "someone's" mom. Given the name of the three other sons the name of the fourth son can be Someone. Did you answer this riddle correctly?
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Man (or woman). A baby crawls on all fours, then walks on two legs as an adult and uses two legs and a cane when they’re old. Did you answer this riddle correctly?
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Number 7 on a phone keypad. Did you answer this riddle correctly?
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Alarm Did you answer this riddle correctly?
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He made $20. $10 the first time, $70 - $60 = $10, and $10 the second time, $90 - $80 = $10, for a total of $20. Did you answer this riddle correctly?
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Teeth Did you answer this riddle correctly?
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If the backyard and garden are two different locations then there would be one person left in the garden. This is because the murderous rampage took place in the backyard, not the garden. However, the riddle solver considers that the backyard and the garden is the same place then, then zero people would be left, as the killer would technically be counted amongst the 34 people. Did you answer this riddle correctly?
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Dice all look the same. On a die, the 1, 3, and 5 all have a dot in the center. The 3 has 2 dots on either side of the center dot, and the 5 has 4 dots around the center dot. Johnny simply counted the number of dots around the outside. A "3" has 2 "petals around the rose, or polar bears around an ice hole." The "5" has 4 "petals" or "polar bears." Roll some dice and it will become clear!! Did you answer this riddle correctly?
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052 Did you answer this riddle correctly?
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The letter 'n'. Throw out the letter n from the word window and you have widow. Bring back the word n to door and you have donor. Did you answer this riddle correctly?
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If 7 men have 7 wives that simply means there are 7 coupled, so that is 7 +7 = 14.
Then, if each couple has a child, that's 14 + 7 = 21.
So the total number of people is 21. Did you answer this riddle correctly?
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Like the three shots and four beers and four shots and three beers and the bathroom thing? That stuff doesn't contribute to the car theory, either.

Really the only extra piece of information that does is the fact that he drove home, but I'd say the thing about jumping out the window as his method of suicide specifically points to the lighthouse theory. So it at least evens out. Did you answer this riddle correctly?
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The correct answer is the chair. The chair has legs but it cannot walk, the chair has arms but it cannot be reached but still, they are strong. Did you answer this riddle correctly?
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The number 15 Did you answer this riddle correctly?
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