The Number Dress-Up Party
I created the Number Dress-Up Party puzzle way back in 2017 and every so often I stumble across it again when searching Twitter for other stuff. When I stumbled across it today, I decided it was time to write it up in a blog post.
The puzzle goes like this:
| The Number Dress-Up Party |
|---|
| All the numbers have come to a dress-up party in full costume. They all know themselves which costume everyone else is wearing, but you don’t know. |
| If you pick any two of them and ask them to combine with +, -, × or ÷, they will point out which costume is the correct answer, and they’ll happily do it as often as you want. For example, you might ask for robot + bear and they will point to unicorn. (If the answer isn't at the party, they'll tell you that too.) |
| How do you correctly identify the numbers 0, 1, 2 and 3? How do you do it in as few steps as possible? |