Doughnut HoleScience brain teasers require understanding of the physical or biological world and the laws that govern it.
If a solid piece of iron shaped as a doughnut was placed under extreme heat, what would the hole in the middle do?
AnswerIt would grow larger.
See another brain teaser just like this one...
Or, just get a random brain teaser
If you become a registered user you can vote on this brain teaser, keep track of
which ones you have seen, and even make your own.
Back to Top