Find the missing number

Passionate kiss like spider's web, soon lead to undoing of fly.
Virginity like bubble, one prick all gone.
Man who run in front of car get tired.
Man who run behind car get exhausted.
Man with hand in pocket feel cocky all day.
Foolish man give wife grand piano, wise man give wife upright organ.
Man who walk thru airport turnstile sideways going to Bangkok.
Man with one chopstick go hungry.
Man who scratches ass should not bite fingernails.
Man who eat many prunes get good run for money.
Baseball is wrong, man with four balls cannot walk.
Panties not best thing on earth but next to best thing on earth.
War doesn't determine who is right, war determines who is left.
Wife who put husband in doghouse soon find him in cathouse.
Man who fight with wife all day get no piece at night.
It take many nails to build crib but one screw to fill it.
Man who drive like hell bound to get there.
Man who stand on toilet is high on pot.
Man who lives in glass house should change clothes in basement.
Man who fishes in other man's well often catches crabs.
Man who farts in church sits in own pew.
Man who drops watch in toilet bound to have crappy time.