What is so fragile that saying its name breaks it?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?

Which statement is true out of the following?
One statement here is false.
Two statements here are false.
Three statements here are false.

The doctor advised his patient to take a tablet after every fifteen minutes. He gave him five tablets in total.

How much time will he take to have all the five tablets?

I don't get anymore wetter, no matter how much rain falls on me.

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see it?

What do you see in the image below

French Police inspects a room where there are no windows, no doors, no tables and is almost empty expect there is just a puddle of water. They found a dead man who obviously hung herself from the ceiling, but they are not able to figure out how this had happened.

John and Jacob entered the crime scene and easily able to solve the case.

How did the man die?