Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

A number with an interesting property:

When I divide it by 2, the remainder is 1.
When I divide it by 3, the remainder is 2.
When I divide it by 4, the remainder is 3.
When I divide it by 5, the remainder is 4.
When I divide it by 6, the remainder is 5.
When I divide it by 7, the remainder is 6.
When I divide it by 8, the remainder is 7.
When I divide it by 9, the remainder is 8.
When I divide it by 10, the remainder is 9.

It's not a small number, but it's not really big, either.
When I looked for a smaller number with this property I couldn't find one.

Can you find it?

Can you count the number of squares in the given picture?

what does the below rebus mean?

What is the word or phrase below?
R | E | A | D

What always comes into a house through the keyhole?

Manish and Manoj play 5 games of chess.
Both Manish and Manoj win the exact same number of games. There is no tie at all.

How?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

Below rebus represent famous DiCaprio movie. Can you name it?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?