Answer:
Two year-old children who throw tantrums get this nickname. So did the tsar "Ivan."
What has a neck but can't swallow?
What is the middle of water but is not an island?
What begins to die on a wedding day?
The main difference between us and zombies
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.