A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

What do you get if you add 2 to 100 four times?

How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?

What is next number in the pattern below:

131 517 192 123 ?

If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?

I cannot talk, but I always reply when spoken to. What am I?

Sweet & very intelligent katty has 8 puppets(Jane Bird Barbie Angel Colleen Nora Lass Missy).
All puppets are of different size. She arrange all puppets to face towards the guest and tell the guess the following clues :

* Jane has three puppets bigger on its left side
* Bird has two puppets smaller on its left side
* Barbie has one puppet bigger on its right side
* Angel has two puppets smaller on its right side
* Colleen has one puppet bigger on its left side
* Nora has one puppet smaller on its left side
* Lass has four puppets bigger on its right side
* Missy has three puppets smaller on its right side

Also some puppets are inside the bigger puppets.

Assuming you are the guest , can you tell the katty how the puppets are arranged ?

I’m tall when I’m young, and I’m short when I’m old. What am I?

I am a five-letter word under you,
Remove the first letter and I am above you,
Remove the second as well and I am around you.

Who am I?

How many words can a pen with half refill write?