If you look at the face of a standard mechanical clock, at how many exact minute-marks do the hour hand and the minute hand overlap completely between 12:00 PM and 1:00 PM?
Once
Between 12:00 and 1:00, the hands start together at 12:00 and do not meet again until approximately 1:05 PM (outside the hour). Therefore, there is exactly one overlap during the 12:00 to 1:00 hour window.
About this riddle
Logic riddles give you a few facts and ask what must be true. List what you know, cross out what cannot be, and see what is left.
Difficulty: Medium. More like this: Logic riddles with answers or try Einstein's Logic Grid for a different kind of puzzle.
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