QUESTION: Generate a question with a factual answer?

ANS: Where were "stacks" created with the LaserStack software used?

QUESTION: Generate a question with a factual answer?

ANS: What was the BBC's main competitor?

QUESTION: Generate a question with a factual answer?

ANS: What was being protested in Estonia?

QUESTION: Generate a question with a factual answer?

ANS:
What was discovered around Neptune in 2004 and 2005?