Table: elitserien_0809
Columns: round
date
home
result
visitor
venue
attendance

Question: Who is the visitor team on Saturday, November 22 when linköpings hc was the home team and there were more than 20 rounds?
SQL: SELECT "visitor" FROM elitserien_0809 WHERE "home" = 'linköpings hc' AND "round" > 20 AND "date" = 'saturday, november 22'

Question: What is the lowest attendance on Monday, November 10 when linköpings hc was the home team and there were more than 18 rounds?
SQL: SELECT MIN("attendance") FROM elitserien_0809 WHERE "home" = 'linköpings hc' AND "date" = 'monday, november 10' AND "round" > 18

Question: Who is the visitor at the axa sports center in round 20?
SQL: SELECT "visitor" FROM elitserien_0809 WHERE "venue" = 'axa sports center' AND "round" = 20