What is the longest word in the dictionary?

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 can go up a chimney down, but can’t go down a chimney up?

John was driving a bus and got stuck when passing through an underpass. Then came Jacob with a needle and got the bus out of the underpass.

What did the boy do?

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?

In a stable, there are men and horses. In all, there are 22 heads and 72 feet. How many men and how many horses are in the stable

In the image below, can you find the value of an angle(y)

What always comes into a house through the keyhole?

I am the largest in my family of fifty.
The youngest of our family lives separately from the rest of the family and so do I.
I am regarded as harsh and tough.
I am so large, you cut me in two equal halves,
each half would still be larger than the second largest member of the family.
Who am I?

Which wheel of car does not rotate when you turn your car right?