Answers:

Rob Pettie and Kara Thornton, New Zealand.

"I do like Vegemite," Mr Pettie said.

"On toast with avocado," Ms Thornton said."

Alberto Cementon, Bermagui.

"I do like it. It's a good starter for risotto. A tablespoon of Vegemite goes well with fresh mushroom risotto."

Yiwo Ko, Hong Kong.

"No I don't, because I don't like the taste."  

Charles Osgood, Bermagui.

"Yes. Just on fresh bread, no butter."