Riddle

When I take five and add six, I get eleven, but when I take six and add seven, I get one. What am I?

Choose an answer

A.A calendar
B.A calculator
C.A ruler
D.A clock
Hint: It's a 2-word phrase with 6 letters, starting with "A".

Answer

A clock

Why this is the answer

This is a clock-face riddle: five o'clock plus six hours lands on eleven, but six o'clock plus seven hours wraps back around to one on a 12-hour clock.

This riddle is filed under Math Riddles and rated Medium.

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