Problem: What is the name of the lake in London's Hyde Park?
======
A: serpentine

Q: Which politician succeeded Anthony Eden as Foreign Secretary in April 1955, and then became Chancellor of the Exchequer in December of the same year?
A: maurice harold macmillan

Problem: Which city state led the beaten Greek forces at the Battle of Thermopylae?
Answer: sparta

Q: What was famously built in 1961 and demolished in 1989?
-----
A: berlin wall

Q: The 17th Century explorer Robert Cavelier (or Robert de la Salle) canoed down which American river and claimed the entire river basin for France?
What is the answer?

A: mississippi river

Mei Li:
Garnet comes in many colours but what is the commonest?
Shuai Zheng:
red