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?

Can you make four (4) nines (9) equal 100?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

Find the Odd One Out?
84129
32418
47632
36119
67626
72927

The teacher told the student that if he told a lie then he will be expelled from school and if he told the truth then he still is expelled from school.

What can a student say to prevent his being expelled from school?

I am beautiful, up in the sky. I am magical, yet I cannot fly. To people I bring luck, and to some people, riches. The boy at my end does whatever he wishes. What am I?

Decode below rebus
D
N
A
T
S , D

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?