I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

You are in a land where thirty men and two women were dressed in classic black and white dresses.
They begin to fight as soon as any of them move.

Where are you?

Below is the sum of symbols in each row and column in the figure. Analyzing the figure, can you find out the value of the symbols?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

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

10+10 and 11+11 can give you the same answer.

Explain how?

The day after tomorrow will be three days before Tuesday. Can you find out what is today?

Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)

I am thinking of a five-digit number such that:
The first and last digits are the same, their submission is an even number and multiplication is an odd number and is equal to the fourth number. Subtract five from it and we obtain the second number. Then divide into exact halves and we get the 3rd number.

What number I am thinking of?