If you've got the time, we've got the riddle. And it's time for a riddle about time: How many numbers are on a clock?
The “minute” on your phone is not a natural thing. Nothing in the sky divides an hour into 60 equal parts. Humans invented ...
Add Yahoo as a preferred source to see more of our stories on Google. The hour, minute and second hands of this clock are all the same length and move smoothly in a circle. The dial contains hour and ...