The following riddle was inspired by what is referred to as "Riley Puzzles / Riddles" (example).
Another Riley Riddle! This one keeps to the traditions, but it might be a little too hard. I will give out hints every $24$ hours.
My prefix is a question.
My suffix, mean but golden.
My infix has two heads,
But I have bars instead.
What am I?
The answer has $4$ letters, and the title is a clue.
Other inspirations include this riddle and this one, too.