During which month do people sleep the least?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

I don't get anymore wetter, no matter how much rain falls on me.

What is the Surname of Barbie Doll?

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?

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?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

The more of this there is, the less you see. What is it?

In an interview, a boy was asked an unusual question 'How two persons sitting with a table in between them can't see each other?' He was unable to reply. Can you?