A bit of this and a bit of that

Why can’t women put on mascara with their mouths closed?
Why don’t you ever see the headline ‘Psychic Wins Lottery!’?
Why is ‘abbreviated’ such a long word?
Why is a boxing ring square?
Why is it called lipstick if you can still move your lips after you use it?
Why is it necessary to nail down the lid of a coffin?
Why is what doctors do called ‘practice’?
Why is it rain drops, but snow falls?
Why is lemon juice made with artificial flavor, and dishwashing liquid made with real lemons?
Why is the third hand on a watch called a second hand?