Manholes

Why are manholes round?

Because it is impossible for the covers to drop inside the holes, no matter how you position them on top. Also, when they have a circular shape, they are easier to roll.

+ latest posts

Puzzle Prime is tirelessly looking all around the internet to find the very best puzzles and bring them all to puzzleprime.com.

Subscribe
Notify of
guest
0 Comments
Inline Feedbacks
View All Comments
Share via
Copy link