Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?

I organized a small get together at my home.
In the party , i have a barrel with some whiskey in it.

Suddenly Guest 1 say 'I bet this barrel of whiskey is more than half full'.
'No, it's less than half full' Guest 2 replied.

I don't have any measuring instrument and without removing whiskey from it , how can i determine which of the guest is right ?

I have Rs.50 and I spend it in the way as below.

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

You have 1023 apples and 10 bags. You have to distribute these apples in these 10 bags in any way you choose. But when I ask for a certain number of apples you have to give them in terms of bags without transferring the apples from other bags. How do you distribute the apples?

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

The cream is heavier than Milk. True or False?

Identify the 10 differences between the two given pictures.