Hello there. I studied Mesopotamia a couple years ago and have done some extra research to ensure accuracy. I've answered to the best of my ability, I hope this helps you!
I am the strange type of writing found on old bricks in southern Mesopotamia. What am I?
Answer: Cuneiform
*Cuneiform was one of the first forms of writing developed by the ancient Sumerians. Do not confuse this with hieroglyphics, as that is a formal writing system developed by the Egyptians.
I am the Italian scholar who went to southern Mesopotamia to look for proof that the old stories were true. Who am I?
Answer: Pietro della Valle
* Pietro della Valle traveled the world during the Renaissance era. He explored the Middle East, the holy land, etc.
I am the mounds in Mesopotamia that rose up above the flatness of the land. What am I?
Answer: Iran.
I am the place that held the key to unlocking cuneiform writing. Where am I?
Answer: Persia.
*This is now modern day Iran.
I am the king who carved a message in three languages, which eventually helped scholars decipher ancient messages. Who am I?
Answer: Darius.
*Darius I was the fourth king of the Persian Achaemenid Empire
I am the pieces of pottery, tablets, helmets and spears found at an ancient site. What am I?
Answer: Artifacts.
I spent twelve years excavating the Sumerian city of Ur. Who am I?
Answer: Sir Leonard Woolley
*Sir Leonard Woolley was a British Archaeologist well known for his excavations in Ur.
I am the place that is home to ancient Sumer. Where am I?
Answer: Tells.
Not too sure about this last one, use your best judgement!