What is so fragile that saying its name breaks it?

How many triangles can you count in the figure given?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

A woman who works in a sweet shop has a measurement of 32-26-36, is 5"4" tall, and wears size "6" shoes. What do you think she weighs?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

What number divided by 4 is the same as that number minus 4?

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