What is so fragile that saying its name breaks it?

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

A boy and his father are caught in a traffic accident, and the father dies. Immediately the boy is rushed to a hospital, suffering from injuries. But the attending surgeon at the hospital, upon seeing the boy, says 'I cannot operate. This boy is my son.' How is this situation explained?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

John: "Hi Teacher, What is your favourite movie ?".
Chemistry Teacher: "Indium Cerium Platinum Iodine Oxygen Nitrogen".
Ten seconds later... John replied I got it.

Do you?

John is selling fruits.
He sells grapes at $30, Dates $25, and a Wolfberry $45.
At what price does he sell fig?

PS: Logical Thinking

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

What four weights can be used to balance from 1 to 30 pounds?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?