What countries will present the biggest challenges to the United States?
What do you think are the biggest challenges to gender equality in Africa?
What would you say are the biggest challenges to the open data movement today?
What are the biggest challenges to your job and how do you overcome them?
Apple's streaming music ambitions represent one of the biggest challenges to Spotify.
The two biggest challenges to making general-purposes robots are, as they always have been, hardware and software.
"The biggest challenges to open spaces in the city are misuse, abuse and neglect," said Neera Punj, convenor of CitiSpace.
These complex financial instruments will pose one of the biggest challenges to policy makers in the year ahead.
Although the case was dismissed by the court, the scandal has posed one of the biggest challenges to President Erdoğan's presidency.
One of the biggest challenges to vocational education is the traditional Chinese bias in favor of a university degree, Dr. Yan said.
"One of the biggest challenges to this mission was not knowing how fast the glacier is moving or in which direction," Dr. Behar said.
