SCIENCE FOR HIGH SCHOOL 13 STORY BUILDING THE POLICE SAY IT WA RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

Before I left, I wound the wall clock. When I returned, the change in time it showed equaled the time it took to go to my friend's and return, plus the time I spent there. But I knew the latter, because I looked at my friend's watch both when I arrived and when I left. Subtracting the time of the visit from the time I was absent from my house, and dividing by 2, I obtained the time it took me to return home. I added this time to the time my friend's watch showed when I left, and set this sum on my wall clock. Did you answer this riddle correctly?
YES  NO  

I wouldn't fit through the door. Did you answer this riddle correctly?
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A rainbow Did you answer this riddle correctly?
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The beach. Did you answer this riddle correctly?
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Romeostasis Did you answer this riddle correctly?
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Fear of utility bills. Did you answer this riddle correctly?
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H-E-L-L-O! Did you answer this riddle correctly?
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A clock. Did you answer this riddle correctly?
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A window. Did you answer this riddle correctly?
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A capital offense. Did you answer this riddle correctly?
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Because he would never lie. Did you answer this riddle correctly?
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Presidentures! Did you answer this riddle correctly?
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No privacy Did you answer this riddle correctly?
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One of Gollums riddles for Bilbo. The answer is time. Did you answer this riddle correctly?
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An island Did you answer this riddle correctly?
YES  NO