People put me on the table and cut me but do not eat me. What am I?

What does below rebus means ?

Count the squares in the matchstick puzzle below?

With pointed fangs I sit and wait; with piercing force I crunch out fate; grabbing victims, proclaiming might; physically joining with a single bite. What am I?

100 prisoners are stuck in the prison in solitary cells. The warden of the prison got bored one day and offered them a challenge. He will put one prisoner per day, selected at random (a prisoner can be selected more than once), into a special room with a light bulb and a switch which controls the bulb. No other prisoners can see or control the light bulb. The prisoner in the special room can either turn on the bulb, turn off the bulb or do nothing. On any day, the prisoners can stop this process and say "Every prisoner has been in the special room at least once". If that happens to be true, all the prisoners will be set free. If it is false, then all the prisoners will be executed. The prisoners are given some time to discuss and figure out a solution. How do they ensure they all go free?

Why is it against the law for a man living in Delhi to be buried in Mumbai?

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?

When is the top of a mountain similar to a savings account?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

You Throw The Outside, Cook The Inside
Eat The Outside, Throw The Inside.

What Is It?