Question: Which astronaut went on the Apollo 16 mission at the age of 36y 6m 18d to step on the moon?
SQL: SELECT "Name" FROM "2-129540-1" WHERE "Mission" = 'Apollo 16' AND "Age at first step" = '36y 6m 18d';

Question: David Scott went on which mission?
SQL: SELECT "Mission" FROM "2-129540-1" WHERE "Name" = 'David Scott';

Question: The astronaut who was 37y 8m 4d when making a first step on the moon was in which service?
SQL: SELECT "Service" FROM "2-129540-1" WHERE "Age at first step" = '37y 8m 4d';

Question: Pete Conrad was on the Apollo 12 mission but also had what Lunar EVA dates?
SQL: SELECT "Lunar EVA dates" FROM "2-129540-1" WHERE "Mission" = 'Apollo 12' AND "Name" = 'Pete Conrad';

Question: The Apollo astronaut who was 38y 9m 7d when first stepping on the moon is who?
SQL: SELECT "Born" FROM "2-129540-1" WHERE "Age at first step" = '38y 9m 7d';