Answer:
Women don't have and don't want it. Men get it but sometimes they try to get rid of it. What is it?
How many months of the year have 28 days?
What do you have in December that you don't have in any other month?
What has a ring but no fingers?
A prehistoric reptile that lives today and the inspiration for the name of a popular sports drink.
It is something you will never see again.