Table: draft_picks_1999
Columns: round
overall
player
position
college

Question: Which position has a Round of 7, and a College of kansas state?
SQL: SELECT "position" FROM draft_picks_1999 WHERE "round" = 7 AND "college" = 'kansas state'

Question: How many rounds have an Overall larger than 17, and a Position of quarterback?
SQL: SELECT COUNT("round") FROM draft_picks_1999 WHERE "overall" > 17 AND "position" = 'quarterback'

Question: Which average overall has a Round of 1, and a Position of center?
SQL: SELECT AVG("overall") FROM draft_picks_1999 WHERE "round" = 1 AND "position" = 'center'