Please correct or add punctuation

Minds are like parachutes: they function only when open.
If we have come to fight, we are far too few, if we have come to die we are far to many.
The travel package includes: a round-trip ticket to Athens, a cruise through Cyclades, and all hotel accomidations
The media like to portray my generation as lazy; allthough polls show that we wors as hard as the twentysomethings before us.
Fran Lebowitz has this advice for parents, 'never allow your child to call yo by your first name. He hasn't known you long enough."
Kay survived for one reason, the medics got to her in time.
While traveling through France, Fiona visited: the Loire Valley, Chartres, the Louvre, and the Mc'Donalds stand at the foot of the Eifel Tower.
There are three types of leave: annual leave, used for vacations, sick leave used for medical appointments and illness, and personal leave used for a variety of personal reasons.
Carl Sandburg once asked three important questions,"Who paid for my freedom? What was the price? And am I somehow beholden?
Robin sorts the crabs into three groups males, females, and crabs about to molt.