It doesn't seem to be possible. Because the questions themselves become a link to the page on which they appear it isn't likely that you could do it, even using the html <img> tag as we can in the comments box. Might be interesting to try but nesting one tag inside another is kinda problematic.
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I was wrong about that. Take a look at my question below: I used the <br> tag to separate the image from the question then inserted an <img> tag ... and it worked. Google them and you'll see the format. Thanks for your question. //www.blurtit.com/4521101/who-is-the-most-unforgettable-person-youve-ever-metbr-img-src