I make two people out of one. What am I?

How many times can you subtract the number 5 from 25?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

1 rabbit saw 9 elephants while going to the river. Every elephant saw 3 monkeys going toward the river. Each monkey had 1 parrot in each hand. How many animals are going towards the river?

The more you take me, the more you leave me behind.
Who Am I?

How can you take 2 from 5 and leave 4?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?