Mei Li:
What type of animal is a karakul??
Shuai Zheng:
sheep
Mei Li:
What is the unit of measurement of wind speed??
Shuai Zheng:
knot
Mei Li:
In the UK, what is the name of the pedestrian crossing with traffic lights which only go green again when no more pedestrians are detected on the crossing??
Shuai Zheng:
puffin crossing