As others have said, you want a clues table.
The clues table needs a question_id column which is obviously a foreign key linking to the id column of the questions table.
Why?
- You will have only have one clues table, not hundreds
- You can fetch all the clues for any question really easily by just retrieving all clues from the clues table with a question_id matching the id of your question
- Other less important stuff, but you can do funky things like automatically delete clues when the associated question is deleted from the questions table (using ON DELETE CASCADE or your dbs equivilant).