What does it mean?

Why do people go to bed?

In the picture given below, can you find out which digit will take place of the question mark?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

You are driving down the road in your car on a wild, stormy night, when you pass by a bus stop and you see three people waiting for the bus

An old lady looks as if she is about to die.
An old friend who once saved your life.
The perfect partner you have been dreaming about.
Knowing that there can only be one passenger in your car, whom would you choose?

What is 3/7 chicken, 2/3 cat and 2/4 goat?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

After undergoing a successful eye operation, A blind girl has just boarded a train to her home. The doctor asked her to open the bandages after 3 hours. On her train journey, she opened the bandages and within a fraction of the time she commits suicide by jumping off the train.

Though her operation was successful, Why did she commit suicide?

How many times can you subtract the number two from the number fifty?

How do you go from 98 to 720 using just one letter?