The puzzles for this issue concern an ordinary clock with an
hour and
minute hand that move continuously with no jerks or
stops. At five o'clock
the hands occupy their usual positions on
the dial.
The first puzzle is to determine the exact time during
the next hour at which
the two hands will be in the exact same
position on the clock?
The second puzzle is to determine the
exact time at which the
hands will first form a right angle with
each other?