School-Safe Puzzle Games

Practical roadside puzzle

This real-world puzzle comes courtesy of

Why is it better to have round manhole covers than square ones?

Feel free to post the answer in the comments section if you think you know it


4 Comments to “Practical roadside puzzle”

  1. Jared | Guest

    Well it is because a circle is the only shape that can’t be twisted and fall through. A square an be turned sideways, and dropped through diagonally an oval again can be turned upright.

  2. RLP | Profile

    You’re right about the square, and the oval too. Thanks for stopping by, Jared

  3. Mark | Guest

    A round man hole cover can be rolled easily into place

  4. sophie | Guest

    round will never fall in

Enter an Answer/Comment/Reply

To comment log in or register for a free Smartkit account.

Recent Comments Sign In