Answers

2015-11-12T21:47:09+05:30
The clock which doesn't work shows correct time twice a day. But a clock losing 1 minute a day doesn't show the correct time at all. 
From this point of view, a incorrect clock is better, but neither of them are of any use.
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2015-11-12T21:48:34+05:30
The second one which doesn't work because it shows the correct time two times or twice a day..!! This is the answer for this riddle.Hope it helps and pls mark as the best answer. :-)
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