[Greysard]

•How many times a day does a clock’s hands overlap?
23 or 24, basically once an hour, it depends on if you're counting 000-2359:59, or 0000-2400.

This is not exactly true. The question doesn't say how many hours it takes your planet to rotate around its axis once. Also it doesn't define the length of the day, as opposed to the length of the night. Those are important details :-)

[DustyMoment]

The question doesn't say how many hours it takes your planet to rotate around its axis once. Also it doesn't define the length of the day, as opposed to the length of the night. Those are important details :-)

It also doesn't take into consideration the second hand. Since the question is unclear as to which hands are included, there cannot be a correct answer.

[PuzzledInTX]

•How many times a day does a clock’s hands overlap?

I'd say that the hands overlap at all times at the center of the clock.

[Jabba the Nutt]

The answer is zero. I used a digital clock.