This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary, you'd think nothing was wrong with it. Actually, nothing IS wrong with it. But it is not as ordinary as you might think. If you think about it for a bit, you will find out why it is truly so unusual. So what is it? What is so unordinary about this paragraph?

A woman is sitting in her hotel room and hears a knock at the door. She opens the door to see a man whom she’s never met before. He says, “I’m sorry, I have made a mistake, I thought this was my room.” He then goes down the corridor and into the elevator. The woman goes back into her room and calls security. What made the woman so suspicious of the man?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

Solve the following series:
AZ, GT, MN, __, YB

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Through your logical capabilities, can you make 7 an even?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

What makes this number unique: 8,549,176,320?