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

On a windy rainy night , I was driving in my car.
When i reach the bus stand , i see three people waiting for the bus.

1. An old lady who needs an immediate medical attention
2. My Best Friend
3. Girl whom i love from childhood

My car is a two seat, so can you tell me , what i have done in this situation ?

How can you tell a raw egg from a hard-boiled egg?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

I taste better than I can smell. Who am I?

What does below Rebus say?

XLR8

There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.

How many marbles are in the box?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

Can it be possible to build a house that has all its four walls facing towards the South?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?