You need to arrange three 7 and mathematical symbols to form number 1?

I came first on earth but second on the heaven.
I also came twice in a week but found just once in a year.
I stay away from months but you can find me in February.

What am I?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

What does the below image rebus riddle means ?

Can you name some countries which do not have the alphabet 'A' in them?

Why is the Hole below a Lock?

Once upon a time, there was a castle on a square island. The entire island was surrounded by a 14m wide trench. The Romans had wanted to invade the castle and had brought a few wooden planks along with them to facilitate themselves in crossing the moat. The planks were however found to be only 13m long.

The Romans still managed to cross the trench. How did they do it?

I am soft and cuddly that soothe your heart. But, If you pick my last name I am going to tear you all apart. Who am I?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?