Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

Suppose that you are trapped on the surface of a frozen lake. The surface is so smooth and ideal that there is no friction at all. You cant make any grip on the ice and no wind is blowing to help you out. You have just a mobile phone with you which has got no reception disabling you to call for help.

How will you plan your escape before you freeze to death on the frozen lake?

Out of four images which one is the odd one out?

How is a fly different from a mosquito?

There are forty elephants and they have forty-fore heads. How can this be possible?

why number 8549176320 is one of a kind?

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?