Generate a question with a factual answer.
Generated: By tradition, what notable figure came to Nepal 250 years before the birth of Christ?

Generate a question with a factual answer.
Generated: Approximately how many extant bird species are flightless?

Generate a question with a factual answer.
Generated: In which place did England finish in the UEFA European Football Championship in 1968?

Generate a question with a factual answer.
Generated: When did Apollo-Soyuz fly?