We do not have a built in feature for placing the Header Image and Survey Title side by side. This workaround works for most of our customers in most cases but may require some tweaking to get it right. If you have a solution that works better let us know!
If you want to place your Header Image and Survey Title side by side, you can use the following CSS code:
display: inline-block !important;
The CSS code can be added to your survey's them on the Style tab. Scroll to the bottom of the survey preview on the Style tab to access the link to the HTML/CSS Editor. Paste the CSS code on the Custom CSS tab.
If you would like to add padding around the two elements, you can use this code as a starting point: