No one wants to have it, but if one got it, he does not want to lose it. What is It?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

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

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

Can you find the mistake in the below statement?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

Replace the question mark with the correct number.