Answer:
As strong as love, more dangerous than cancer.
Securing your documents is easy with these trusty metal objects
A defendant will go free if a reasonable amount of this exists.
Tickle with your fingers and a song it will sing. Be careful, though, you may break a string. What is it?
What occurs four times in every week, twice in every month, only once in a year but never in a day?
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.