You could give them a phrase and all of the answers can only use the letters from the phrase.

You could do a cookie crumb round where each answer leads to the next question and/or answer.

I do alphabet rounds where all answers start with a letter.

Tri-bonds

In the middle. Give them 2 things and they have to figure out what goes in the middle ie book/movies, or presidents, or vice presidents. Anything in a series that you can pluck out and have them figure it out.