Mei Li:
What type of volcanic stone is commonly used during pedicures??
Shuai Zheng:
pumice
Mei Li:
Heroes sung by Mans Zelmerlow won the 2015 Eurovision Song Contest representing which country??
Shuai Zheng:
sweden
Mei Li:
Which BBC crime drama stars Idris Elba in the title role??
Shuai Zheng:
luther