Answer:
Two people are born at the same moment, but they don't have the same birthdays. How could this be?
Double my number, I'm less than a score. Half of my number is less than four. Add one to my double when bakers are near. Days of the week are still greater, I fear.
A precious fluid, thicker than water.
In the night a mountain, in the morning a meadow.
A hill full, a hole full; yet you cannot catch a bowl full. What is it?
A doctor might remove one from the neck of a Dracula victim.