Answer:
I am your mother's brother's only brother in law. Who am I?
The more you look at it, The less you see.
Sends paper without using the post office.
What 11letter English word is always pronounced incorrectly?
What has many keys but cannot open a single lock or door?
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.