Can anyone tell me a word in the English dictionary which has a silent 'z'?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

I organized a small get together at my home.
In the party , i have a barrel with some whiskey in it.

Suddenly Guest 1 say 'I bet this barrel of whiskey is more than half full'.
'No, it's less than half full' Guest 2 replied.

I don't have any measuring instrument and without removing whiskey from it , how can i determine which of the guest is right ?

Using Only Five 5's and any mathematical operator make sum as 37

Living above a star, I do not burn
Eleven friends and they do not turn
I can just be visited in a sequence, not once or repeatedly
PQRS are my initials
Can you tell my name accurately?

O_er_t_o_

Complete the missing letters of the given word.

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

Which is heavier: a ton of bricks or a ton of feathers?

Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS