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

What Word am I Looking For ?

Can you count the number of children in the picture below

Prove that twice of ten is the same as twice of eleven.

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

Aaron, Brad, Christopher, Danny and Elvis decided to play a game of tiddlywinks. In this game they decided that one win will get 1 point for winning, 0 for losing and 1/2 in case of a tie.

They finished the game in alphabetical order and it was found that the scores were different for each person.

Based on the following two statements, can you find out the result of the individual games?
Brad: No one could finish like me, without a loss.
Elvis: No one played worse than me, I finished without a single win.

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

As a whole I am both
safe and secure.

Behead me and I become
a place of meeting.

Behead me again and I am
the partner of ready.

Restore me, and I become
the domain of beasts.

What am I?

A bank customer had $100 in his account. He then made 6 withdrawals. He kept a record of these withdrawals, and the balance remaining in the account, as follows:

Withdrawals Balance left
$50 $50
$25 $25
$10 $15
$8 $7
$5 $2
$2 $0
----- -----
$100 $99

Why are the Totals not tallying?

What always comes into a house through the keyhole?

No matter how little or how much you use me, you change me every month. What am I?