What is both possible and impossible at the same time?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

Why do people go to bed?

There is something which you can be arrested for attempting but not for successfully completing.

There is so small cabin inside a deep forest.
All the forest burned out to worst possible but the inside of the cabin is still the same.
However all the person inside the cabin die.

How come ?

Can you find out the number of the parking space in which the car is parked?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

John was so frustrated to be the suspect of being a sleeper terrorist that he shoot himself right between the eyes with a revolver in his toilet. The revolver and the bullets were accurate. Minutes later John walks out of the toilet unharmed.
How can this be possible?

what does the below rebus means?