Can you find a number that lies one third of the distance between 1/3 and 2/3?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Write the next letter in this sequence.
O, T, T, F, F, S, S, E, __
**Hint: It is a Number Series Puzzle

There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

The answer I give is yes, but what I mean is no. What was the question?

You can see it everyday, But cannot touch it at will. What is it?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not rounded numerals equals 24.

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _