Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Find the next number in the sequence

5 12 24 36 ?

I’m orange, I wear a green hat and I sound like a parrot. What am I?

What does an Island and the letter T have in common?

John was running from 40 thieves. John has got 3 gold boxes which weigh as 4kg, 2kg, and 1kg respectively. A witty man asked John to stay with him for seven days in exchange for 1kg gold per day. John needs to stay there for seven days and also do not want to give the witty man any advance. How can John pay for his seven days stay?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

Identify the hidden meaning behind this picture?

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

Intelligence Agency need to break the vault but the problem is that they are not able to break the vault.

On the vault, a text is written as:

31 11 33 33 43 45
21 25
31 24 11 31 51 41

To Break the code Intelligence Agency brings a mathematician named Joseph.
Minutes later he deciphers the code.

Whats the code?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?