The following sentence is false. The preceding sentence is true.
Are these two sentences true or false?

What month of the year has 28 days?

If you say my name, I will no longer exist. What am I?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

He digs out tiny caves and stores gold and silver in them. He also built bridges of silver and made crowns of gold. They are the smallest you could imagine. Sooner or later everybody needs his help, yet many people are afraid to let him help them. Who is he?

I am dry when I go inside, but wet when I am pulled outside.
The longer I am inside, the stronger I get
When I am completely out, I am wet and I literally sag
Who am I?

The more you take me, the more you leave me behind.
Who Am I?

If a wheel has 54 spokes, how many spaces are there between the spokes?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?