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

What Word am I Looking For ?

I am sure no one can have two things for dinner. what are they?

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

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

On one occasion, A Boy collects 71 rupees in form of 20 paise and 25 paise. He collects a total of 324 coins.

Can you tell me how many 20-paisa and 25-paisa he got?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

There are two words one resembles the "state of rest" and the other is related to "writing/reading material".

Can you name these two words which also sound similar?

Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of London.

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?