Why do you drink when drowning in the sea?

Because with all that salt comes a great thirst.

Why do we often sit on the bed?

Because the other pieces of furniture are inconveniences.

Why is the sea water salty?

Because if it were sweet, sharks would find us insipid.

Why are fir trees decorated for Christmas?

Because on the weeping willow the presents would slip.

Why do ants walk in line?

Because outside the queue they would lose their place in the canteen.