Q: What did Frenchman Dr Pierre Dukan devise which bears his name, and after achieving great popularity in France, began to spread internationally in the early 2000s?
What is the answer?

A: dukan diet

Q: Which city is the capital of Saudi Arabia?
What is the answer?

A: riyadh

Q: In which country is Lake Como
What is the answer?

A: italy

Q: For what does the C stand in the acronym UNESCO?
What is the answer?

A:
cultural