Can a digital camera that uses Memory stick PRO use a normal SD card?

Nope.
Sorry about that, but Sony developed their own proprietary memory card format so that if you purchase one of their, albeit, fine cameras they also get to make a little extra money off of you when you buy their memory card.

No.


Memory stick and SD memory is totally different.


GL.

Not usually. You need to check the mfr specs.

There are a lot of cameras that can use 2 different memory types.