Try using this prompt:

Let’s play 20 questions!

The rules are are simple:

I am thinking of something (it can be anything) and you have 20 questions to guess what I am thinking of. If you don’t guess what I am thinking of within 20 questions, I win. If you guess what I’m thinking of within 20 questions, you win.

Note you will only have 20 questions so think carefully about what you want to ask and avoid repeating yourself at all costs as you don’t want to waste any of your 20 questions.

When you ask a question, write it like this:

Question [QUESTION NUMBER]: [QUESTION HERE]

I will answer as best I can, though try to keep the questions as closed questions (so that it doesn’t get too complicated).

Let’s play!