If a chronic liar tells you he is a chronic liar do you believe him?
If sour cream is past its expiration date is it good then?
If a tree falls in the forest without anyone there, does it still make a sound? Do the other trees make fun of it?
If it's zero degrees outside today and it's supposed to be twice as cold tomorrow, how cold is it going to be?
If people from Poland are called Poles, why aren't people from Holland called Holes?
If pro is the opposite of con, is progress the opposite of congress?
If quitters never win, and winners never quit, who came up with, "Quit while you're ahead"?
If Superglue is so good why doesn't it stick to the inside of the tube?
If the folks at the psychic hotlines were really psychic, wouldn't they call you first?
If the plural of tooth is teeth, why isn't the plural of booth beeth?
If women ran the Pentagon, would missiles and submarines be shaped differently?
If you have a friend who works for the Psychic Friends Network, do you plan a surprise birthday party for them?
If you try to fail, and succeed, which have you done?
If a book about failures doesn't sell, is it a success?
If the "black box" survives every plane crash, why not make the entire plane out of that stuff?