How can you make number one disappear by adding something to it?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?

What do you answer even though it never asks you questions?

I make two people out of one. What am I?

I am a five-letter word and people eat me. If you remove the first letter I become an energy form. If you remove the first two letters, I am needed to live. Scramble the last three letters and I am a drink. What word am I?

If two's company, and three's a crowd, then whats four and five ?

You see me once in June, twice in November, and not at all in May. What am I?

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

There are 3 apples in the basket and you take away 2. How many apples do you have now?