I think it may be Coccinia grandis. See link below.

Here is a link that might be useful: Coccinia grandis

Tony, that definitely looks like it although I haven't seen its flowers or fruits yet though. Thanks!

This looks like Tindora (Indian). I have a plant at home and will take a picture and post it for you to compare.

Gora

See also this link, re common names. Tindora is mentioned at bottom of page.

Here is a link that might be useful: Plant name database

Dunno the botanical name, but it is a delicacy in Thailand. The young tender stems & leaves are used in soup. A little chopped pork, a little of fish sauce and black pepper and cubed soft tofu. Yummy. Supposdely it is rich in vitamin D. We were told it will give us clear vision. :-P