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

What Word am I Looking For ?

A man was gazing through the window of the 23rd floor of the building. He suddenly opened the window and jumped on the other side of the window. On landing on the floor, there was not a sheer mark of injury on him.

How can that be possible if he did not use any kind of parachute and did not land on a soft surface?

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

How is a fly different from a mosquito?

Find out the missing number in the picture attached:

What kind of storm is always in a rush?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

How can you take 2 from 5 and leave 4?

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.