1) Tsiolkovsky was known as the father of human space flight.
Was Tsiolkovsky known as the father of human space flight?
Who was known as the father of human space flight?
Whom was Tsiolkovsky known as?
Was Tsiolkovsky known as the father of human space flight or as a teacher?
Tsiolkovsky was known as the father of human space flight, wasn't he?
2) Korolyov was a legend in his own time and in ours.
Was Korolyov a legend in his own time and in ours?
Who was a legend in his own time and in ours?
When was Korolyov a legend?
Was Korolyov a legend or a myth in his own time and in ours?
Korolyov was a legend in his own time and in our, wasn't he?
3) The cosmonaut's first and only space flight lasted 108 minutes.
Did the cosmonaut's first and only space flight last 108 minutes?
What lasted 108 minutes?
How long did the cosmonaut's first and only space flight last?
Did the cosmonaut's first and only space flight lasted 108 or 110 minutes?
The cosmonaut's first and only space flight lasted 108 minutes, didn't it?
