Table: yorkshire_2008_cricketers
Columns: player
matches
innings
not_out
runs
high_score
average
strike_rate
100s

Question: What is the mean number of matches when the strike rate is 87.37 and the 100s is less than 0?
SQL: SELECT AVG("matches") FROM yorkshire_2008_cricketers WHERE "strike_rate" = '87.37' AND "100s" < 0

Question: How many average 100s were there for Tim Bresnan?
SQL: SELECT AVG("100s") FROM yorkshire_2008_cricketers WHERE "player" = 'tim bresnan'