Each Friday morning I post a riddle to get you to think outside the box and exercise your brain. If you are stumped, share it with a friend or colleague and see if you can figure out the answer together.
This week’s riddle forces you to think like a kid. I hope you enjoy it and share your guess below as a comment. If you don’t see your comment posted right away, don’t worry, I want to give everyone a chance to guess.
This week’s brain teaser:
If eleven plus two equals one, then what does nine plus five equal? Explain your answer.
BosGuy 
two. on a twelve hour clock, 1 is 2 hours past 11 and 2 is 5 hours past 9.
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2. It’s using an analogue clock (12-hour version).
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2 telling time on a clock
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9 + 5 = 2 oclock
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2. Adding time on a clock. Eleven o’clock plus 2 hours equals one o’clock. Nine o’clock plus 5 hours equals 2 o’clock.
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2 o’clock
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11 o’clock plus 2 hours = 1 o’clock
9 o’clock plus 5 hours = 2 o’clock
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2. You are adding time on a face of a clock. 11 o’clock plus 2 hours equals 1 o’clock.
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