Table: walter_centeno_goals
Columns: goal
date
venue
result
competition

Question: How many goals were scored on 21 Junio 2008?
SQL: SELECT COUNT("goal") FROM walter_centeno_goals WHERE "date" = '21 junio 2008'

Question: How was the competition in which 6 goals were made?
SQL: SELECT "competition" FROM walter_centeno_goals WHERE "goal" = 6

Question: At the venue of panama city, on 11 Febrero 2006, how many goals were scored?
SQL: SELECT COUNT("goal") FROM walter_centeno_goals WHERE "venue" = 'panama city' AND "date" = '11 febrero 2006'