When can we add 2 to 11 and get 1 as the correct answer?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

In a rainy season, one day 3 huge ladies walked under a normal-sized umbrella.
The umbrella is not huge enough to accommodate all 3 ladies yet not a single lady got wet. Why?

Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?

Three cars are driving on a track that forms a perfect circle and is wide enough that multiple cars can pass anytime. The car that is leading in the race right now is driving at 55 MPH and the car that is trailing at the last is going at 45 MPH. The car that is in the middle is somewhere between these two speeds.
Right now, you can assume that there is a distance of x miles between the leading car and the middle car and x miles between the middle car and the last car and also, x is not equal to 0 or 1.
The cars maintain their speed till the leading car catches up with the last car and then every car stops. In this scenario, do you think of any point when the distance between any two pairs will again be x miles i.e. the pairs will be x distance apart at the same time ?

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?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

I travel all around the world but always stay in the corner. What am I?

By using 'because' continuously three times, can you make an English statement ?