Mei Li:
Which Russian-American is credited with inventing the helicopter??
Shuai Zheng:
igor sikorsky
Mei Li:
In 2009, Heath Ledger was the second person to win an Oscar posthumously. Who was the first??
Shuai Zheng:
peter finch
Mei Li:
Who plays ex-policeman 'Gerry Standing' in 'New Tricks'??
Shuai Zheng:
denis waterman