"Things to Ponder - Part 2" joke

Why is it considered necessary to nail down the lid of a coffin?
Why is it rain drops, but snow falls?
Why isn't there mouse-flavored cat food?
What do you call a male ladybug?
What hair color do they put on the driver's license of a bald man?
Why does the sun lighten our hair, but darken our skin?
Why doesn't glue stick to the inside of the bottle?
Why is a boxing ring square?
Why is lemon juice made with artificial flavour, and dishwashing liquid made with real lemons?
Why is the third hand on the watch called a second hand?
If they squeeze olives to get olive oil, how do they get baby oil?
If a firefighter fights fire and a crime fighter fights crime, what does a freedom fighter fight?
Why are cigarettes sold at gas stations where smoking is prohibited?
Why is it called tourist season if we can't shoot at them?
If con is the opposite of pro, is Congress the opposite of progress?