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

What Word am I Looking For ?

On the dull night when the blonde was dozing, she heard an odd clamour and she saw that there was a bizarre man with a gun simply outside her home. So she raced to the telephone to call the police, however, she can't dial 911. Why?

What begins with T, ends with T, and has T in it?

A Child was born in Lahore, Pakistan.

Still child is not a Pakistani citizen.why ?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

Keyboard words are not in alphabetical order, Why?

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

How long he can cover the distance of one side at a still lake with no current?

Can you move 2 matchsticks to form four equal sized squares.

Why do you find that most of the buildings are deprived of the 13th floor?

A non-stop marathon is the shared favourite sport of three brothers.

*The oldest one is fat and short and trudges slowly on.
*The middle brother's tall and slim and keeps a steady pace.
*The youngest runs just like the wind, speeding through the race.

"He is young in years, we let him run!" the other two brothers explained, "'because though he is surely number one, he is second, in a way." Why is it?