I got asked to prep another one. I generally use them as a group activity. Give the first question and students race to find the answer then once a member of a group gives you the right answer give them question number two to convey to their group. I generally do about 12 questions.
The fastest team is the winner or the fastest few teams get stickers. Or if they are going fast enough all teams get stickers.
Alternately it could be done in pairs (Which requires a lot of color photocopying) and they make their own question then come to the teacher together, one asks and the other answers.