List of top Quantitative Aptitude Questions on Clocks

On a given day, how many times will the second-hand and the minute-hand of a clock cross each other during the clock time 12{:05{:}00 hours to 12{:}55{:}00 hours?}

In a watch, the minute hand crosses the hour hand for the third time exactly after every 3 hr 18 min and 15 s of watch time. What is the time gained or lost by this watch in one day?