Mei Li:
Corcovado mountain overlooks which city??
Shuai Zheng:
rio de janeiro
Mei Li:
Abraham Maslow's original 'Hierarchy of Needs' theory comprises how many stages??
Shuai Zheng:
five
Mei Li:
Which top tennis player became father to two sets of twins in less than five years??
Shuai Zheng:
roger federer