Sometimes but very rarely!
It is worthy to note that Steem incorporates the "Proof-of-brain" concept. People contribute to the platform by sharing their knowledge, skills, talent and experiences. Whenever someone asks a question, it almost always does not require one to think and questions are mostly just one-sentence comments.
The way I see it, if @musing starts upvoting questions with significant rewards, then people would come in flocking to the platform with so many random questions. So personally, I don't think it's unfair that answers are earning a lot more compared to the questions.