Answer:
Its title means book.
I make you weak at the worst of all times. I keep you safe, I keep you fine. I make your hands sweat. And your heart grow cold. I visit the weak, but seldom the bold.
I'm a bacteria that causes typhoid What's my name ?
No matter how little or how much you use me, you change me every month.
When the day after tomorrow is yesterday. Today will be as far from Wednesday. As today was from Wednesday. When the day before yesterday was tomorrow. What is the day after this day?
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.