I have an eye but still cannot see.

Who am I?

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

Explain?

Fate has decided that you will only be pleased to meet me when you need me

Maybe that is why, when I am working, I start working

However annoying I may be to the regulars, the little ones are always inspired

I will always be waiting if you try to reach me

How many of you can guess my name, let me see

Which is the correct shadow of the bird?

Can you solve this picture maths equation?

Twice ten are six of us,

Six are but three of us,

Nine are but four of us;

What can we possibly be?

Would you know more of us?

Twelve are but six of us,

Five are but four, do you see?

What are we?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

What jumps when it walks and sits when it stands?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?